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150 Nuwa (A875 UA)
Classification: Main-belt Asteroid          SPK-ID: 2000150
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233516107598807 3.0635e-08  
a 2.983795935109228 9.2369e-09 au
q 2.61573990033472 9.1908e-08 au
i 2.201099800609181 3.7542e-06 deg
node 206.1447315766757 8.8487e-05 deg
peri 153.4893623574514 8.984e-05 deg
M 43.74865151930003 1.6225e-05 deg
tp 2458771.721992007638
(2019-Oct-15.22199201)
8.4511e-05 TDB
period 1882.574205536745
5.15
8.7418e-06
2.393e-08
d
yr
n .1912275218375042 8.8797e-10 deg/d
Q 3.351851969883735 1.0376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3341  
   data-arc span      44372 days (121.48 yr)  
   first obs. used      1899-05-07  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:51  

Additional Information
 Earth MOID = 1.61255 au 
 Jupiter MOID = 2.10216 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455504.5 (2010-Nov-04.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277182701627749 3.0969e-08  
q 2.600209957149098 9.3339e-08 au
tp 2454995.980910645613
(2009-Jun-13.48091065)
7.5496e-05 TDB
node 206.2735575380886 8.8852e-05 deg
peri 151.3920037080197 9.0048e-05 deg
i 2.192839862569335 3.7531e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3341  
   data-arc span      44372 days (121.48 yr)  
   first obs. used      1899-05-07  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:51  

Additional Information
 Jupiter MOID = 2.10216 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.590710648314824E-16 -2.879600769742847E-15 3.504195721199897E-13 6.953757386512529E-15 4.779965115901551E-14 4.446410967932333E-17
q -2.879600769742847E-15 8.712142782496687E-15 -9.361200504061009E-13 -1.881428615590705E-14 -1.220444639863289E-13 -3.137658960910181E-17
tp 3.504195721199897E-13 -9.361200504061009E-13 5.699643495230406E-9 1.258896196455164E-11 1.118653341865303E-9 1.474943307666433E-13
node 6.953757386512529E-15 -1.881428615590705E-14 1.258896196455164E-11 7.894592337038105E-9 -7.885965070857035E-9 5.942433699244324E-11
peri 4.779965115901551E-14 -1.220444639863289E-13 1.118653341865303E-9 -7.885965070857035E-9 8.108600152561415E-9 -5.934283971394785E-11
i 4.446410967932333E-17 -3.137658960910181E-17 1.474943307666433E-13 5.942433699244324E-11 -5.934283971394785E-11 1.408590374874995E-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 8.5   n/a MPO502154 IRAS observations used: 19
diameter diameter 119.128 km 1.869 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.1347 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Di Martino, M. (1984) Icarus 60, 541-546.]
[Armstrong, J.C.; Nellermoe, B.L.; Reitzler, L.E. (1996) I.A.P.P.P. Comm. 63, 59-68.]
[Blanco, C.; Di Martino, M.; De Sanctis, G.; Riccioli, D. (1996) Planet. Space Sci. 44, 93-106.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2011) Minor Planet Bull. 38, 156-158.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.052   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.706   0.065 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=2.26, mean=6.69, max.=9.49) deg.
U-B UB 0.275   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=2.26, mean=6.69, max.=9.49) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Cb   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)

150 Nuwa (A875 UA)          Discovered 1875-Oct-18 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A875 UA = 2002 JR70 = A908 AL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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