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100004 (1983 VA)
Classification: Apollo [NEO]          SPK-ID: 2100004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7032966124372708 6.2699e-08  
a 2.596046026468684 3.9531e-08 au
q .7702556503220209 1.5977e-07 au
i 15.82822390428468 9.965e-06 deg
node 76.69142177733907 3.1662e-05 deg
peri 13.27692877432082 3.2645e-05 deg
M 235.8937442201462 2.8293e-05 deg
tp 2459527.193770176539
(2021-Nov-08.69377018)
0.00013042 TDB
period 1527.801770121031
4.18
3.4897e-05
9.554e-08
d
yr
n .2356326632423532 5.3821e-09 deg/d
Q 4.421836402615346 6.7333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      12653 days (34.64 yr)  
   first obs. used      1983-10-27  
   last obs. used      2018-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42677  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jun-19 06:37:14  

Additional Information
 Earth MOID = .17579 au 
 Jupiter MOID = .890969 au 
 T_jup = 2.971 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO449608  
diameter diameter 2.70 km 0.1 IRAS-A-FPA-3-RDR-IMPS-V5.0 IRAS observations used: 4
rotation period rot_per 3.1643 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Galad, A.; Pravec, P.; Gajdos, S.; Kornos, L.; Vilagi, J. (2007) Earth, Moon, and Planets 101, 17-25.]
geometric albedo albedo 0.0668   0.006 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 1: at least two valid IRAS band observations used

100004 (1983 VA)          Discovered 1983-Nov-01 by IRAS at IRAS
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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