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2099 Opik (1977 VB)
Classification: Mars-crossing Asteroid          SPK-ID: 2002099
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3604439592922166 3.8299e-08  
a 2.304226061698999 2.8863e-09 au
q 1.473681696915901 8.794e-08 au
i 26.95322838429555 5.0642e-06 deg
node 218.810253633446 6.5702e-06 deg
peri 159.3711287285981 1.0107e-05 deg
M 126.508346778598 4.9844e-06 deg
tp 2458751.545082322920
(2019-Sep-25.04508232)
1.7449e-05 TDB
period 1277.573966298099
3.50
2.4005e-06
6.572e-09
d
yr
n .2817840763013798 5.2945e-10 deg/d
Q 3.134770426482098 3.9266e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1349  
   data-arc span      23124 days (63.31 yr)  
   first obs. used      1956-12-01  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:20:18  

Additional Information
 Earth MOID = .494129 au 
 Jupiter MOID = 2.38119 au 
 T_jup = 3.365 
[ 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 15.14   n/a E2021B10  
diameter diameter 5.180 km 1.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 6.4430 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.056   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.690   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.02 deg.
U-B UB 0.350   0.057 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.02 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2099 Opik (1977 VB)          Discovered 1977-Nov-08 by Helin, E. F. at Palomar
and E. M. Shoemaker
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 VB = 1977 UL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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