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1129 Neujmina (1929 PH)
Classification: Main-belt Asteroid          SPK-ID: 2001129
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08331464430994101 4.1659e-08  
a 3.022826280267701 1.2769e-08 au
q 2.770980583916455 1.282e-07 au
i 8.619586632557818 4.3687e-06 deg
node 269.2181263159629 2.9142e-05 deg
peri 139.7256242006905 3.9225e-05 deg
M 32.62152098421832 2.5e-05 deg
tp 2458826.551809129338
(2019-Dec-09.05180913)
0.00013336 TDB
period 1919.633015999875
5.26
1.2163e-05
3.33e-08
d
yr
n .1875358451326112 1.1882e-09 deg/d
Q 3.274671976618947 1.3832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      34359 days (94.07 yr)  
   first obs. used      1926-01-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:46:21  

Additional Information
 Earth MOID = 1.78872 au 
 Jupiter MOID = 2.04096 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456340.5 (2013-Feb-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07988668940059018 4.121e-08  
q 2.782182035187668 1.2611e-07 au
tp 2456897.915226419682
(2014-Aug-28.41522642)
0.00014283 TDB
node 269.5264063649556 2.9151e-05 deg
peri 137.8699400699327 4.0302e-05 deg
i 8.616634621946011 4.3655e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      34359 days (94.07 yr)  
   first obs. used      1926-01-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:46:21  

Additional Information
 Jupiter MOID = 2.04096 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.698285067223469E-15 -5.174852024410949E-15 4.061476828503481E-14 -8.454142241034956E-15 2.563014626817297E-14 -6.574784446597327E-16
q -5.174852024410949E-15 1.590415460358037E-14 -3.290492116806682E-13 2.42649572443198E-14 -1.26601761418124E-13 2.43777297464676E-15
tp 4.061476828503481E-14 -3.290492116806682E-13 2.039983993552437E-8 -1.303088996617381E-11 3.999943653598198E-9 7.956384981075573E-13
node -8.454142241034956E-15 2.42649572443198E-14 -1.303088996617381E-11 8.497776226347361E-10 -8.421372185849723E-10 -1.520299362677215E-11
peri 2.563014626817297E-14 -1.26601761418124E-13 3.999943653598198E-9 -8.421372185849723E-10 1.624256787273004E-9 1.507732451031263E-11
i -6.574784446597327E-16 2.43777297464676E-15 7.956384981075573E-13 -1.520299362677215E-11 1.507732451031263E-11 1.905792355186105E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.20   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 34.576 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.0844 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Carbo, L.; Kragh, K.; Krotz, J.; Meiers, A.; et al. (2009) Minor Planet Bull. 36, 91-94.]
[Ditteon, R.; West, J. (2011) Minor Planet Bull. 38, 214-217.]
geometric albedo albedo 0.138   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.780   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.11 deg.
U-B UB 0.410   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.11 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1129 Neujmina (1929 PH)          Discovered 1929-Aug-08 by Parchomenko, P. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1929 PH = 1926 AE = A914 WE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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