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22807 (1999 RK7)
Classification: Mars-crossing Asteroid          SPK-ID: 2022807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2438000746983349 3.6359e-08  
a 2.173448891498261 5.2362e-09 au
q 1.643561889397972 7.9459e-08 au
i 2.070031211238539 3.8673e-06 deg
node 15.97009587373245 8.3562e-05 deg
peri 318.3230595677673 8.3803e-05 deg
M 242.6121169470169 6.4656e-06 deg
tp 2459582.130736247754
(2022-Jan-02.63073625)
2.1543e-05 TDB
period 1170.36836746755
3.20
4.2294e-06
1.158e-08
d
yr
n .3075954631095935 1.1116e-09 deg/d
Q 2.70333589359855 6.5128e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1470  
   data-arc span      11000 days (30.12 yr)  
   first obs. used      1991-01-11  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:18  

Additional Information
 Earth MOID = .632495 au 
 Jupiter MOID = 2.67441 au 
 T_jup = 3.647 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.25   n/a E2021B10  

22807 (1999 RK7)          Discovered 1999-Sep-03 by Spacewatch at Kitt Peak
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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