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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3603381795888658 3.8935e-08  
a 2.304358977486229 2.8875e-09 au
q 1.474010458419581 8.9407e-08 au
i 26.95165677732311 5.1593e-06 deg
node 218.8188768815103 6.5794e-06 deg
peri 159.3718887464899 1.0186e-05 deg
M 70.15466170920524 4.9972e-06 deg
tp 2458751.512431697298
(2019-Sep-25.01243170)
1.7603e-05 TDB
period 1277.684510268423
3.50
2.4015e-06
6.575e-09
d
yr
n .2817596966283712 5.2958e-10 deg/d
Q 3.134707496552878 3.9279e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      23076 days (63.18 yr)  
   first obs. used      1956-12-01  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:12:35  

Additional Information
 Earth MOID = .495548 au 
 Jupiter MOID = 2.38005 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 15.1   n/a MPO502173  
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. 2019-August); 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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