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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1234883647007331 2.0695e-08  
a 2.984562652846429 7.4103e-09 au
q 2.616003891499541 6.0116e-08 au
i 2.200838691784464 9.055e-07 deg
node 206.1375001267767 1.234e-05 deg
peri 153.5883085793517 1.5271e-05 deg
M 81.8878546117655 5.9593e-06 deg
tp 2458772.112816136818
(2019-Oct-15.61281614)
3.0889e-05 TDB
period 1883.299873002014
5.16
7.014e-06
1.92e-08
d
yr
n .1911538386216495 7.1192e-10 deg/d
Q 3.353121414193316 8.3254e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3586  
   data-arc span      44516 days (121.88 yr)  
   first obs. used      1899-05-07  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45404  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:55:21  

Additional Information
 Earth MOID = 1.6112 au 
 Jupiter MOID = 2.10187 au 
 T_jup = 3.245 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456832.5 (2014-Jun-24.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126507202941131 2.1473e-08  
q 2.605416575681063 6.2896e-08 au
tp 2456878.432425554243
(2014-Aug-08.93242555)
2.8044e-05 TDB
node 206.2441126302115 1.2392e-05 deg
peri 151.6210125234463 1.5093e-05 deg
i 2.193159918976545 9.0762e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3586  
   data-arc span      44516 days (121.88 yr)  
   first obs. used      1899-05-07  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45404  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:55:21  

Additional Information
 Jupiter MOID = 2.10187 au 
 T_jup = 3.245 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.610828766821434E-16 -1.344025396055843E-15 -2.855045861728449E-13 -3.567897682315493E-14 -5.542454104348795E-14 1.176859814303543E-15
q -1.344025396055843E-15 3.955911912524246E-15 8.524457671304624E-13 1.046995589542958E-13 1.653869750934558E-13 -3.595908883328968E-15
tp -2.855045861728449E-13 8.524457671304624E-13 7.864920118582987E-10 -7.704699353053435E-11 2.634759425183148E-10 4.995949146650152E-12
node -3.567897682315493E-14 1.046995589542958E-13 -7.704699353053435E-11 1.535510448488943E-10 -1.674749824440413E-10 -8.96491725528108E-12
peri -5.542454104348795E-14 1.653869750934558E-13 2.634759425183148E-10 -1.674749824440413E-10 2.277906389011114E-10 1.004956356625966E-11
i 1.176859814303543E-15 -3.595908883328968E-15 4.995949146650152E-12 -8.96491725528108E-12 1.004956356625966E-11 8.237671535449133E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.49   n/a E2021B10 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. 2020-October); 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

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