Lagniappe Observing

Oct 22, 2020

Map of 316 impacts in Fireballs Reported by US Government Sensors (1988-Apr-15 to 2020-Oct-21; limited to events >= 0.3kt)

Map of 316 impacts in Fireballs Reported by US Government Sensors (1988-Apr-15 to 2020-Oct-21; limited to events >= 0.3kt) https://cneos.jpl.nasa.gov/fireballs/ 2018VP1 is small~2m any fireball from it would be ~ 4.2e-4 Mt = 0.42 KT [note 225 are >= 0.42 KT] https://cneos.jpl.nasa.gov/sentry/details.html#?des=2018%20VP1

https://docs.google.com/spreadsheets/d/1_K6JofpQw7Uz7oXLVbcH8l8rSFiM8zb4/edit#gid=246013977

Oct 5, 2020

Back of the Envelope Calculation Using the JPL's Fireball Data --- 2018 VP1

I did a back of the envelope calculation using the JPL's fireball data to estimated that asteroids equal to or greater than 2018 VP1 impact the Earth at a rate of one every 37 to 53 days. IMHO we are at greater risk from the "background." https://docs.google.com/spreadsheets/d/12i7lhXgL0u6m36eoenKDKV-dLtkoedz0/edit?f#gid=1305411600 asteroid https://cneos.jpl.nasa.gov/fireballs/ https://cneos.jpl.nasa.gov/sentry/details.html#?des=2018%20VP1

Aug 7, 2020

I am working on getting a website The Asteroid News up and running

I am working on getting a website the Asteroid News up and running. There is a need for very high quality researches, writers, editors, web editors, coders, databases, etc. info(AT)theasteroidnews(dot)com

Aug 1, 2020

The Asteroid 2020 NK1 Has Been Removed From Sentry: Earth Impact Monitoring

Jul 25, 2020

What is Up With Asteroid 2018 SV13

Here a write up "What is Up With Asteroid 2018 SV13" Is asteroid 2018 SV13 real? NO

Jul 22, 2020

The NEO 2020 NK1 On 2020-07-21 From Siding Spring Observatory Australia.

The NEO 2020 NK1 Has Been Rated Torino Impact Hazard Scale 1 this happens a few times a year. The current The NEO 2020 NK1 Has Been Rated Torino Impact Hazard Scale 1 this happens a few times a year. The current Torino Scale state for 1 " A routine discovery in which a pass near Earth is predicted, that poses no unusual level of danger. Current calculations show the chance of collision is extremely unlikely with no cause for public attention or public concern. New telescopic observations very likely will lead to reassignment to Level 0." I in order to help lower uncertainty I did an imaging run with itelescope.net's T30 in itelescope.net

The NEO 2020 NK1 on 2020-07-21 from Siding Spring Observatory Australia - MPC Q62 using T30 (0.50-m f/6.8 reflector + CCD) a stack of 15 - 20 second luminance BIN2 images . By Steven M. Tilley

The NEO 2020 NK1 on 2020-07-21from Siding Spring Observatory Australia - MPC Q62 using T30 (0.50-m f/6.8 reflector + CCD) a stack of 15 - 20 second luminance BIN2 images . By Steven M. Tilley

The NEO 2020 NK1 on 2020-07-21 from Siding Spring Observatory Australia - MPC Q62 using T30 (0.50-m f/6.8 reflector + CCD) a stack of 15 - 20 second luminance BIN2 images . By Steven M. Tilley

Perihelion 2020 Sep 21.088437 +/- 0.0701 TT = 2:07:21 (JD 2459113.588437)
Epoch 2020 Jul 21.0 TT = JDT 2459051.5   Earth MOID: 0.0027   Ve: 0.0539
M 322.85838324 +/- 0.24            (J2000 ecliptic)          Find_Orb
n   0.59820505 +/- 0.00329          Peri. 107.84849 +/- 0.10
a   1.39498433 +/- 0.00511          Node   311.10569 +/- 0.006
e   0.6474844 +/- 0.0012              Incl.   45.46161 +/- 0.08
P   1.65/601.79d           H 19.0   G 0.15   U 8.9
q 0.49175368 +/- 0.000137    Q 2.29821498 +/- 0.0103
From 41 observations 2020 July 13-21; mean residual 0".18

Background

(as of 2020-07-21 )

(Check links for Updates)

Object: 2020 NK1
Orbit Type: Apollo [NEO, PHA]
Approximate Diameter: 420 m - 940 m (1377.95 to 3083.99 Feet) (Absolute H= 19.0 )
On the Sentry Risk Table: YES [8 Number of Potential Impacts 2090-2101]
for more information read Understanding Risk Pages by Jon Giorgini
On the NEODyS CLOMON2 risk page: YES[22 Number of Potential Impacts 2086-2102]
Listed on The Near-Earth Object Human Space Flight Accessible Targets Study (NHATS):NO
Listed on the Goldstone Asteroid Radar Schedule:NO
Listed on the Arecibo Asteroid Radar Schedule:YES(Priority Level High)
Radar Observations: none (yet)
Discovery observation was made:2020 07 13.567919 by ATLAS-MLO, Mauna Loa(MPC Code T08)
Last Observation(publish) was made:2020 07 21.18925000
ESA Optical Ground Station, Tenerife (MPC Code J04)
Number of Optical Observations(published): 38
Oppositions: 1
Number of Observatories Reporting (Published) Observations :8
Observatories Reporting (Published) Observations(MPC Code):

(474) Mount John Observatory, Lake Tekapo, New Zealand.
(E10) Siding Spring-Faulkes Telescope South, Australia/NSW.
(J04) ESA Optical Ground Station, Tenerife , Canary Islands (Spain).
(Q59) Siding Spring-LCO Clamshell {#}2 Australia/NSW.
(T05) ATLAS-HKO, Haleakala, US/Hawaii. Observer
(T08) ATLAS-MLO, Mauna Loa,US/Hawaii. Observers
(W88) Slooh.com Chile Observatory, La Dehesa,Chile.
(Z84) Calar Alto-Schmidt, Spain.

Perihelion Distance: 0.49 AU
Aphelion Distance: 2.28 AU
Earth MOID: 0.00275208 AU (1.071 Lunar Distance) 64.55 Earth radii
Close-Approach to Earth: 2020-Jul-31 Minimum Distance 0.0544283775663102(AU) 21.182 Lunar Distance (LD)

Also see:

JPL Small-Body Database Browser (2020 NK1)
Sentry: Earth Impact Monitoring 2020 NK1 -- Earth Impact Risk Summary
NEODyS-2 2020NK1
Understanding Risk Pages by Jon Giorgini
Arecibo Asteroid Radar Schedule
MPC Observations Database 2020 NK1
Torino Scale
Sentry: Earth Impact Monitoring Introduction
Palermo Technical Impact Hazard Scale
The Tracking News - Earth's Busy Neighborhood , 2020-07-21, 2020-07-20, 2020-07-19, 2020-07-18 , Consolidated Risk Tables
Quantifying the risk posed by potential Earth impacts Steven R. Chesley (JPL), Paul W. Chodas (JPL), Andrea Milani (Univ. Pisa), Giovanni B. Valsecchi Icarus 159, 423-432 (2002) (PDF)

Jul 21, 2020

The NEO 2020 NK1 Has Been Rated Torino Impact Hazard Scale 1 -- Normal (Green Zone)

The NEO 2020 NK1 Has Been Rated Torino Impact Hazard Scale 1 this happens a few times a year. The current Torino Scale state for 1 " A routine discovery in which a pass near Earth is predicted, that poses no unusual level of danger. Current calculations show the chance of collision is extremely unlikely with no cause for public attention or public concern. New telescopic observations very likely will lead to reassignment to Level 0." 2020 NK1 just need more observations.

Artist's concept of a near-Earth object. Image: Courtesy NASA/JPL-Caltech

Perihelion 2020 Sep 21.139924 +/- 0.224 TT = 3:21:29 (JD 2459113.639924)
Epoch 2020 Jul 17.0 TT = JDT 2459047.5   Earth MOID: 0.0027   Ve: 0.0545
M 320.28294890 +/- 0.8              (J2000 ecliptic)          Find_Orb
n   0.60050040 +/- 0.0106           Peri. 107.92176 +/- 0.35
a   1.39142727 +/- 0.0164           Node   311.10237 +/- 0.024
e   0.6466292 +/- 0.00384           Incl.   45.40097 +/- 0.25
P   1.64/599.49d           H 19.0   G 0.15   U 9.7
q 0.49168968 +/- 0.000482    Q 2.29116486 +/- 0.0332
From 29 observations 2020 July 13-19; mean residual 0".18