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JPL Small-Body Database Browser
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1132 Hollandia (1929 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2001132
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2750216299356526 3.016e-08  
a 2.686559161117395 8.2812e-09 au
q 1.947697281708329 8.1179e-08 au
i 7.221016569257983 4.098e-06 deg
node 29.59590786542572 2.7814e-05 deg
peri 270.6278373194901 2.8753e-05 deg
M 243.9880562670578 8.4812e-06 deg
tp 2459518.814361401491
(2021-Oct-31.31436140)
3.8952e-05 TDB
period 1608.396205601654
4.40
7.4367e-06
2.036e-08
d
yr
n .2238254472039957 1.0349e-09 deg/d
Q 3.42542104052646 1.0559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2823  
   data-arc span      33017 days (90.40 yr)  
   first obs. used      1929-09-13  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:46:37  

Additional Information
 Earth MOID = .948794 au 
 Jupiter MOID = 1.88949 au 
 T_jup = 3.308 
[ 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 11.1   n/a MPO267711  
diameter diameter 27.235 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.360 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bull. 34, 119-122.]
[Clark, M. (2015) Minor Planet Bull. 42, 15-20.]
[Fauerbach, M.; Brown, A. (2018) Minor Planet Bull. 45, 240-241.]
geometric albedo albedo 0.086   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1132 Hollandia (1929 RB1)          Discovered 1929-Sep-13 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1929 RB1 = 1942 NC = 1946 JA = 1951 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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