Lagniappe Observing

Mar 17, 2019

The NEO(Aten) 2019 EA2 on on 2019-03-17

Image of the NEO(Aten) 2019 EA2 on 2019-03-17 from AstroCamp Observatory. Nerpio, Spain ( MPC I89) a stack of 20-60 Second Luminance BIN2 Images taken with iTelescope.net's (T07 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

The NEO(Aten) 2019 EA2 was first observed by the Mt. Lemmon Survey on 2019-03-09. I has an absolute magnitude of 25.852 giving it an estimated diameter of 18 m - 40 m. This asteroid will make a close approach of 0.8 lunar distance on 2019-Mar-22.
See :

https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019EA2

https://newton.spacedys.com/neodys/index.php?pc=1.1.0&n=2019EA2

https://cneos.jpl.nasa.gov/sentry/details.html#?des=2019 EA2

http://www.hohmanntransfer.com/mn/19/19076_0317.htm

https://minorplanetcenter.net//mpec/K19/K19F08.html

https://cneos.jpl.nasa.gov/ca/

Jan 14, 2019

Observing The NEO 2019 AG7 on 2019-01-13 from Siding Spring Australia

The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley


Orbit diagram 2019 AG7 Earth Distance: 0.014 AU Sun Distance: 0.988 AU courtesy of NASA/JPL-Caltech 2019-01-13 13:25 UTC https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019AG7

Background

(as of 2019-01-13)

Object:2019 AG7
Orbit Type: Aten [NEO]
Approximate Diameter: 23 m to 51 m (75.4593 feet to 167.323) (Absolute Magnitude: H= 25.32)
O n the Sentry Risk Table: Yes

NOTE this is NOT a prediction of an impact but rather a statement there is insufficient observational data rule out an impact -- for more information read Understanding Risk Pages by Jon Giorgini

Torino Scale 0

"The likelihood of a collision is zero, or is so low as to be effectively zero. Also applies to small objects such as meteors and bodies that burn up in the atmosphere as well as infrequent meteorite falls that rarely cause damage.."

On the NEODyS CLOMON2 risk page: Yes

Torino Scale:0

First(Precovery) Observation was made: 2018 12 31.614374(By Pan-STARRS 1, Haleakala, US/Hawaii. (MPC Code F51))
Discovery observation was made:2019 01 09.37994 (By the Catalina Sky Survey, US/Arizona. (MPC Code 703)
Last Observation(publish): 2019 01 12.582898 (By Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m) (MPC Code T12)
Data-Arc Span (publish): 12 days
Number of Optical Observations(published):54
Observatories Reporting (Published) Observations(MPC Code):

(204) Schiaparelli Observatory,Italy.
(291) LPL/Spacewatch II, US/Arizona.
(474) Mount John Observatory, Lake Tekapo, New Zealand.
(703) Catalina Sky Survey, US/Arizona.
(807) Cerro Tololo Observatory, La Serena, Chile.
(F51) Pan-STARRS 1, Haleakala (N20.707235 W156.255910) US/Hawaii.
(F65) Haleakala-Faulkes Telescope North, US/Hawaii.
(G40) Slooh.com Canary Islands Observatory, Canary Islands (Spain).
(I52) Steward Observatory, Mt. Lemmon Station
(J04) ESA Optical Ground Station, Tenerife, Canary Islands (Spain).
(J95) Great Shefford,UK.
(L01) Višnjan Observatory, Tičan, Croatia.
(T05) ATLAS-HKO, Haleakala, US/Hawaii.
(T12) Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m), US/Hawaii.

Perihelion Distance: 0.4829280277140071(AU)
Aphelion Distance: 1.007267187900272(AU)
Earth MOID: 0.00482722(AU), 1.879 (LD), 113.348270821(Earth Radii), 448,718.132 (Miles), or 722,141.833(KM)
Close-Approach to Earth: Will safely pass Earth on 2019-Jan-15 at a Nominal Distance of 0.0100782635426263(AU), 3.922(LD), 236.648370166 (Earth Radii), 936,833.123(Miles), or 1,507,686.766(KM)

Dec 17, 2018

Confirmation Images Of The NEOCP(NEO Confirmation Page) Object (A10aElq = 2002 XQ90) on 2018-12-13

The NEO 2002 XQ90 first observed at an apparent magnitude of 17.4 by Lincoln Laboratory ETS, New Mexico(MPC Code 704) on 2002-12-15, ten days after it made a approaches of 11.50 Lunar Distances (0.02954 Astronomical Units). This asteroid was observed until 2003-01-12 when it became too faint to be observed. On 2018-12-09 ATLAS-MLO(Asteroid Terrestrial-impact Last Alert System - Mauna Loa) on its nightly sweep of the nigh sky found an object at an apparent magnitude of an apparent magnitude of 19.1. Observations of this object were reported to the Minor Planet Center(MPC) using the observer-assigned temporary designation A10aElq. The object was posted the NEO Confirmation Page. Observer from around world submitted confirmation observations to the MPC. In an effort to help in the confirmation I obtain 60-10 Second Luminance BIN2 taken using iTelescope.net's(T11).

I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of 14 images.

A confirmation image of the NEOCP(NEO Confirmation Page) object (A10aElq = 2002 XQ90)
on 2018-12-13 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06)
a stack of 14-10 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley

I submitted my observations to the Minor Planet Center(MPC).
On 2018-12-16 the MPC issued MPEC 2018-Y02 : 2002 XQ90 and identify the A10aElq as 2002 XQ90.

2002 XQ90 Earth Close Approaches (JPL)

Close-Approach (CA) Date and Time (TDB)	±		Time Uncertainty	CA Distance Nominal (LD)	CA Distance Nominal (au)	CA Distance Minimum (LD)	CA Distance Minimum (au)
1903-10-01 14:09	±		00:02	24.91	0.06401	24.91	0.06401
1919-09-21 01:49	±	<	00:01	21.14	0.05433	21.14	0.05433
1935-09-09 11:52	±	<	00:01	42.43	0.10902	42.43	0.10902
1986-12-18 06:01	±	<	00:01	44.06	0.1132	44.05	0.1132
2002-12-05 01:14	±	<	00:01	11.5	0.02954	11.5	0.02954
2018-12-11 01:08	±	<	00:01	18.03	0.04633	18.03	0.04633
2079-09-25 12:59	±	<	00:01	22.64	0.05818	22.64	0.05818
2095-11-07 20:06	±		00:03	29.34	0.07538	29.33	0.07538
2111-11-29 13:51	±		00:02	16.73	0.04298	16.72	0.04297
2127-12-07 00:16	±	<	00:01	9.98	0.02565	9.98	0.02565
2143-12-23 11:58	±		00:04	55.32	0.14216	55.31	0.14213
2188-09-08 17:20	±		00:06	65.3	0.1678	65.28	0.16775

Also see:

Oct 1, 2018

September 2018 In NEO News in Review

The Japanese Space Agency,JAXA, successfully landed two small robotic rovers on the asteroid Ryugu.

[MINERVA-II1] #asteroidlanding https://t.co/iafav3jguJ pic.twitter.com/GBvfEYcPTV
— HAYABUSA2@JAXA (@haya2e_jaxa) September 21, 2018

As Hayabusa2 descended towards Ryugu to deploy the MINERVA-II1 rovers, the ONC-T camera snapped the highest resolution image yet of the asteroid surface!https://t.co/JDbk29RXHG pic.twitter.com/KFsLet5BMJ
— HAYABUSA2@JAXA (@haya2e_jaxa) September 28, 2018

#asteroidlanding pic.twitter.com/5Vhc7NYJRj
— MASCOT Lander (@MASCOT2018) September 30, 2018

JPL Close Approach Data for September 2018 Distance Nominal < 1 Lunar Distance

Object	Close-Approach (CA) Date	CA Distance Nominal (LD \| au)	CA Distance Minimum (LD \| au)	H (mag)	Estimated Diameter
2018 SM	2018-Sep-15	0.11 \| 0.00028	0.11 \| 0.00028	29.4	3.5 m - 7.9 m
2018 RZ5	2018-Sep-12	0.13 \| 0.00033	0.13 \| 0.00033	29.7	3.1 m - 6.9 m
2018 SD2	2018-Sep-25	0.23 \| 0.00059	0.23 \| 0.00058	28.6	5.0 m - 11 m
2018 RS	2018-Sep-05	0.28 \| 0.00071	0.27 \| 0.00071	29.5	3.4 m - 7.6 m
2018 RJ3	2018-Sep-07	0.44 \| 0.00112	0.43 \| 0.00112	27.8	7.2 m - 16 m
2018 RW	2018-Sep-08	0.44 \| 0.00114	0.44 \| 0.00114	30.3	2.3 m - 5.2 m
2018 RY5	2018-Sep-12	0.47 \| 0.00120	0.47 \| 0.00120	26.5	13 m - 30 m
2018 RC	2018-Sep-09	0.58 \| 0.00150	0.58 \| 0.00150	24.9	28 m - 63 m
2018 SC	2018-Sep-18	0.70 \| 0.00179	0.70 \| 0.00179	27.9	6.9 m - 16 m
2018 RR1	2018-Sep-03	0.94 \| 0.00243	0.94 \| 0.00242	29.9	2.7 m - 6.1 m
2018 RE2	2018-Sep-06	0.99 \| 0.00255	0.99 \| 0.00254	28.5	5.4 m - 12 m

Objects removed from JPL's Sentry: Earth Impact Monitoring page.

Object Designation	Removed (UTC)
2018 RB7	9/29/2018 15:26
2018 RJ7	9/22/2018 16:11
2018 RP5	9/16/2018 15:06
2018 RQ1	9/16/2018 15:00
2018 RH3	9/15/2018 16:06
2018 RT3	9/15/2018 16:04
2018 RE5	9/14/2018 15:18
2018 PY7	9/12/2018 15:02
2018 RP	9/09/2018 15:07
2018 MC7	9/07/2018 14:50
2018 RC	9/06/2018 15:04
2018 QJ1	9/03/2018 14:43

Highlights of My Work for September 2018

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 60-30 second luminance BIN2 images
taken with iTelescope.net's (T31)
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-09 from
Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 22-30 second luminance BIN2 images
taken with iTelescope.net's (T30)
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10
from Sierra Remote Observatory, Auberry, California (MPC U69)
a stack of 14-30 second luminance BIN2 images
taken with iTelescope.net's (T24)
By Steven M. Tilley

Object I observed in September 2018

Designation	Classification	MPC Code	Telescope	Date of observations	Number of observations
2046	Main Belt	Q62	T17	9/2/2018	3
61324	Main Belt	Q62	T31	9/1/2018	3
61324	Main Belt	Q62	T31	9/1/2018	3
61417	Main Belt	Q62	T31	9/1/2018	3
61417	Main Belt	Q62	T31	9/1/2018	3
71460	Main Belt	Q62	T31	9/1/2018	3
71460	Main Belt	Q62	T31	9/1/2018	3
73540	Main Belt	Q62	T31	9/1/2018	3
73540	Main Belt	Q62	T31	9/1/2018	3
80076	Main Belt	H06	T11	9/14/2018	3
83105	Main Belt	Q62	T31	9/1/2018	3
84966	Main Belt	Q62	T31	9/8/2018	3
128837	Main Belt	Q62	T31	9/8/2018	3
157941	Main Belt	Q62	T31	9/1/2018	3
173394	Main Belt	Q62	T31	9/1/2018	3
173394	Main Belt	Q62	T31	9/1/2018	3
197120	Main Belt	Q62	T31	9/1/2018	3
209101	Main Belt	Q62	T31	9/1/2018	3
231098	Main Belt	Q62	T17	9/2/2018	3
253061	Main Belt	Q62	T31	9/1/2018	3
331431	Main Belt	Q62	T31	9/8/2018	3
523788	NEO(Apollo)	Q62	T17	9/30/2018	3
1998 SD9	NEO(Aten)	H06	t11	9/1/2018	3
2018 RB	NEO(Apollo, PHA)	Q62	T31	9/1/2018	3
2018 RB	NEO(Apollo, PHA)	Q62	T31	9/1/2018	3
2018 RB	NEO(Apollo, PHA)	Q62	T17	9/2/2018	3
2018 RP8	NEO(Aten)	H06	T21	9/17/2018	4
2018 RQ1	NEO(Aten)	Q62	T31	9/8/2018	3
2018 RQ1	NEO(Aten)	Q62	T30	9/9/2018	3
2018 RQ1	NEO(Aten)	H06	T11	9/10/2018	3
2018 RQ1	NEO(Aten)	U69	T24	9/10/2018	3
21P/Giacobini-Zinner	Comet	H06	T11	9/14/2018	3
46P/Wirtanen	Comet	Q62	T17	9/22/2018	4
				Total	101

Sep 26, 2018

IF the Earth was the size of a basketball how far away would NEO Earth close approaches be?

IF the Earth was the size of a basketball how far away would NEO Earth close approaches be? Here is a list of The 100 closest observed NEO Earth close approaches as of 2018-09-26.

Sep 24, 2018

The Comet 46P/Wirtanen on 2018-09-22 from (MPC Q62)

The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 15 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley

The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Add) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley

The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Average) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley

The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Median) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley

These observations were made in support of the PACA_46P/Wirtanen campaign

Sep 20, 2018

Confirmation images of the NEO 2018 RP8

The NEO(Aten) 2018 RP8 (approximate diameters 320 m - 710 m [ 1049.87 foot - 2329.4 foot]) was first observed by ATLAS HKO (Asteroid Terrestrial-Impact Last Alert System) on 2018-09-15. The observations were submitted to the Minor Planet Center(MPC) in Cambridge, Massachusetts using the observer-assigned temporary designation A108wr0. This "new" asteroid was posted to the NEO Confirmation Page(NEOCP) informing observers around the world that "A108wr0" needed confirmation observations. In an effort to help in the confirmation I obtain 60-15 Second Luminance BIN2 taken using iTelescope.net's(T21).

I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of 15 images. Each image was shifted match movement of A108wr0.
.

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)

from Mayhill, New Mexico

[New Mexico Skies](MPC Code H06)

15-15 second luminance BIN2 images

taken with iTelescope.net's (T21)

By Steven M. Tilleyn

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico
[New Mexico Skies](MPC Code H06)
15-15 second luminance BIN2 images
taken with iTelescope.net's (T21)
By Steven M. Tilleyn