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102751 (1999 VR120)
Classification: Main-belt Asteroid          SPK-ID: 2102751
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07645622822125318 4.0886e-08  
a 2.309518959791117 9.1208e-09 au
q 2.132941851120016 9.3079e-08 au
i 7.601076090646095 6.1971e-06 deg
node 47.04871279001425 3.306e-05 deg
peri 209.4862321033021 5.4011e-05 deg
M 126.6625613620642 4.2412e-05 deg
tp 2458749.448127590248
(2019-Sep-22.94812759)
0.00015111 TDB
period 1281.978449838482
3.51
7.5942e-06
2.079e-08
d
yr
n .280815952908847 1.6635e-09 deg/d
Q 2.486096068462218 9.8181e-09 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      8295 days (22.71 yr)  
   first obs. used      1998-04-21  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58556  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:43:27  

Additional Information
 Earth MOID = 1.12046 au 
 Jupiter MOID = 2.53164 au 
 T_jup = 3.570 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457750.5 (2016-Dec-28.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0759573334727585 4.0711e-08  
q 2.134694188481573 9.2592e-08 au
tp 2457468.422213850636
(2016-Mar-20.92221385)
0.00015336 TDB
node 47.07899240297231 3.3036e-05 deg
peri 209.9178463991963 5.4331e-05 deg
i 7.60356700812464 6.199e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      8295 days (22.71 yr)  
   first obs. used      1998-04-21  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58556  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:43:27  

Additional Information
 Jupiter MOID = 2.53164 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.657403150544488E-15 -3.754454715299126E-15 -3.769703001519783E-12 3.450915527975683E-16 -1.053885087637258E-12 3.528114573285776E-15
q -3.754454715299126E-15 8.57321148689101E-15 8.571599742873104E-12 -8.139982430615458E-16 2.39881953818957E-12 -8.004706525490684E-15
tp -3.769703001519783E-12 8.571599742873104E-12 2.351853362150787E-8 -4.269257507133256E-11 6.634706675888995E-9 -3.603775517600001E-12
node 3.450915527975683E-16 -8.139982430615458E-16 -4.269257507133256E-11 1.091371600734144E-9 -1.093091023152191E-9 -1.149367728711385E-10
peri -1.053885087637258E-12 2.39881953818957E-12 6.634706675888995E-9 -1.093091023152191E-9 2.951831951349854E-9 1.128720358816038E-10
i 3.528114573285776E-15 -8.004706525490684E-15 -3.603775517600001E-12 -1.149367728711385E-10 1.128720358816038E-10 3.842710524787476E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO338000  

102751 (1999 VR120)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 VR120 = 1998 HH92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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