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15721 (1990 OV)
Classification: Main-belt Asteroid          SPK-ID: 2015721
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296098025852419 2.8694e-08  
a 2.266502750263776 6.8773e-09 au
q 1.97274177624318 6.6602e-08 au
i 6.312558617707561 3.7491e-06 deg
node 208.3650388865638 2.8246e-05 deg
peri 87.1013481619062 3.1874e-05 deg
M 277.5777647878384 1.4871e-05 deg
tp 2459285.847905877619
(2021-Mar-12.34790588)
5.1742e-05 TDB
period 1246.329292714757
3.41
5.6726e-06
1.553e-08
d
yr
n .2888482218177247 1.3147e-09 deg/d
Q 2.560263724284372 7.7687e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1863  
   data-arc span      11954 days (32.73 yr)  
   first obs. used      1987-09-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:52:14  

Additional Information
 Earth MOID = .96929 au 
 Jupiter MOID = 2.6147 au 
 T_jup = 3.597 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457051.5 (2015-Jan-29.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301521375237129 2.8723e-08  
q 1.971578241052917 6.6719e-08 au
tp 2456791.984701619350
(2014-May-14.48470162)
5.0226e-05 TDB
node 208.4054137008957 2.8271e-05 deg
peri 86.89249855541486 3.1857e-05 deg
i 6.309255264202965 3.7481e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1863  
   data-arc span      11954 days (32.73 yr)  
   first obs. used      1987-09-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:52:14  

Additional Information
 Jupiter MOID = 2.6147 au 
 T_jup = 3.597 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.249985144740644E-16 -1.909027152036907E-15 7.541804416559895E-14 8.776145008792417E-16 3.436787369218081E-14 -5.876847194135741E-16
q -1.909027152036907E-15 4.451459326405207E-15 -1.729189175501039E-13 -2.45275045174045E-15 -7.732435997526852E-14 1.482826389401696E-15
tp 7.541804416559895E-14 -1.729189175501039E-13 2.52268835678725E-9 -1.155936208156858E-12 7.441545679603115E-10 -4.139519268467845E-13
node 8.776145008792417E-16 -2.45275045174045E-15 -1.155936208156858E-12 7.992503030644053E-10 -7.944255680587067E-10 -6.958398515995094E-12
peri 3.436787369218081E-14 -7.732435997526852E-14 7.441545679603115E-10 -7.944255680587067E-10 1.014892360114746E-9 6.809148284509741E-12
i -5.876847194135741E-16 1.482826389401696E-15 -4.139519268467845E-13 -6.958398515995094E-12 6.809148284509741E-12 1.404832539257875E-11

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 14.5   n/a MPO452393  
diameter diameter 2.671 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.567   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15721 (1990 OV)          Discovered 1990-Jul-19 by Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1990 OV = 1987 SX25 = 1993 KU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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