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27742 (1990 UP4)
Classification: Main-belt Asteroid          SPK-ID: 2027742
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1881902720237938 5.2589e-08  
a 2.449076693812662 1.0917e-08 au
q 1.988184284596924 1.251e-07 au
i 5.526027573062928 5.0884e-06 deg
node 170.1737859105436 3.9692e-05 deg
peri 217.2146318506343 4.102e-05 deg
M 268.5918442867372 1.1631e-05 deg
tp 2459355.954855295703
(2021-May-21.45485530)
4.6395e-05 TDB
period 1399.916089630568
3.83
9.3608e-06
2.563e-08
d
yr
n .2571582701753234 1.7195e-09 deg/d
Q 2.9099691030284 1.2972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1990-10-16  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55132  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:05:14  

Additional Information
 Earth MOID = .995538 au 
 Jupiter MOID = 2.54461 au 
 T_jup = 3.466 
[ 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 14.9   n/a MPO337492  
diameter diameter 5.035 km 1.711 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.084   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

27742 (1990 UP4)          Discovered 1990-Oct-16 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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