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

Background

(as of 2020-07-20 ) 

(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 [26 Number of Potential Impacts  2084-2106]
• for more information read Understanding Risk Pages by Jon Giorgini 
• On the NEODyS CLOMON2 risk page: YES[46 Number of Potential Impacts  2080-2103] 
• 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 19.607192 by ATLAS-HKO, Haleakala(MPC Code T05)
• Number of Optical Observations(published): 29
• Oppositions: 1 
• Number of Observatories Reporting (Published) Observations :6
• Observatories Reporting (Published) Observations(MPC Code):

• (474) Mount John Observatory, Lake Tekapo, New Zealand.
• (E10) Siding Spring-Faulkes Telescope South, 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: 0.00278361 AU (1.083 Lunar Distance) 65.29 Earth radii
• Close-Approach to Earth:  2020-Jul-31 Minimum Distance  0.052769696480622 (AU) 20.536 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 
• 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)