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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08347257063188594 3.6218e-08  
a 3.023145830312036 1.1655e-08 au
q 2.770796076460823 1.0932e-07 au
i 8.61883444036134 4.0952e-06 deg
node 269.216426794964 2.6424e-05 deg
peri 139.7240996715124 3.6951e-05 deg
M 70.11401350609788 2.469e-05 deg
tp 2458826.570783293990
(2019-Dec-09.07078329)
0.00013174 TDB
period 1919.937417395966
5.26
1.1102e-05
3.04e-08
d
yr
n .1875061117816394 1.0843e-09 deg/d
Q 3.27549558416325 1.2628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3151  
   data-arc span      34712 days (95.04 yr)  
   first obs. used      1926-01-10  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:50  

Additional Information
 Earth MOID = 1.78774 au 
 Jupiter MOID = 2.04068 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456768.5 (2014-Apr-21.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07970624231837915 3.5894e-08  
q 2.781428226028154 1.0762e-07 au
tp 2456899.243880059825
(2014-Aug-29.74388006)
0.00014113 TDB
node 269.5241012117241 2.6429e-05 deg
peri 138.1626752925566 3.8081e-05 deg
i 8.616755058141644 4.0948e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3151  
   data-arc span      34712 days (95.04 yr)  
   first obs. used      1926-01-10  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:50  

Additional Information
 Jupiter MOID = 2.04068 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.288387628277721E-15 -3.843861836889714E-15 -2.699948824439158E-13 -5.02459997769829E-15 -6.418204275940333E-14 -1.799178906162703E-16
q -3.843861836889714E-15 1.158182753247018E-14 6.661840448412355E-13 1.390550335032739E-14 1.618913619039938E-13 8.117333683287853E-16
tp -2.699948824439158E-13 6.661840448412355E-13 1.991646595683875E-8 -1.038487833876034E-11 3.890011195683795E-9 7.781563431816558E-13
node -5.02459997769829E-15 1.390550335032739E-14 -1.038487833876034E-11 6.984750180187569E-10 -6.920637439917236E-10 1.143107976953967E-12
peri -6.418204275940333E-14 1.618913619039938E-13 3.890011195683795E-9 -6.920637439917236E-10 1.450181562027538E-9 -1.03086122810974E-12
i -1.799178906162703E-16 8.117333683287853E-16 7.781563431816558E-13 1.143107976953967E-12 -1.03086122810974E-12 1.676759654972304E-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 10.26   n/a E2021B10 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. 2020-October); 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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