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1830 Pogson (1968 HA)
Classification: Main-belt Asteroid          SPK-ID: 2001830
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05577920009684002 1.5341e-08  
a 2.188876527880563 4.5717e-09 au
q 2.066782746044637 3.3631e-08 au
i 3.956289572275575 5.736e-07 deg
node 147.4346325518403 1.0658e-05 deg
peri 335.77344970 1.1147e-05 deg
M 224.4346526100044 8.4497e-06 deg
tp 2459841.926974347508
(2022-Sep-19.42697435)
2.7798e-05 TDB
period 1182.851767449066
3.24
3.7058e-06
1.015e-08
d
yr
n .3043492091797561 9.5351e-10 deg/d
Q 2.31097030971649 4.8268e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3802  
   data-arc span      34815 days (95.32 yr)  
   first obs. used      1926-04-14  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36847  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:06:48  

Additional Information
 Earth MOID = 1.08336 au 
 Jupiter MOID = 2.70156 au 
 T_jup = 3.669 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457138.5 (2015-Apr-26.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05597934425231851 1.5397e-08  
q 2.065822731973188 3.3761e-08 au
tp 2457475.551666443681
(2016-Mar-28.05166644)
2.8066e-05 TDB
node 147.4719680217064 1.0664e-05 deg
peri 335.4208491128 1.1107e-05 deg
i 3.954617961961914 5.7354e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3802  
   data-arc span      34815 days (95.32 yr)  
   first obs. used      1926-04-14  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36847  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:06:48  

Additional Information
 Jupiter MOID = 2.70156 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.370532355407025E-16 -5.156726398273698E-16 -2.041752746152192E-13 7.878200293386871E-15 -5.888848391433647E-14 -8.850509100750482E-16
q -5.156726398273698E-16 1.139791525375444E-15 4.230772638366738E-13 -1.638104104850291E-14 1.197033856949132E-13 1.929932964393288E-15
tp -2.041752746152192E-13 4.230772638366738E-13 7.876742412654353E-10 9.543124805281362E-11 1.41482722964253E-10 1.87496140890134E-12
node 7.878200293386871E-15 -1.638104104850291E-14 9.543124805281362E-11 1.137270613846893E-10 -8.240215852692469E-11 3.627195108201875E-13
peri -5.888848391433647E-14 1.197033856949132E-13 1.41482722964253E-10 -8.240215852692469E-11 1.233680466847551E-10 2.024763175420036E-13
i -8.850509100750482E-16 1.929932964393288E-15 1.87496140890134E-12 3.627195108201875E-13 2.024763175420036E-13 3.289515446047611E-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 12.63   n/a MPCxxxxx  
diameter diameter 7.710 km 0.669 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.56999 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Oey, J.; Pray, D. (2007) CBET 957.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J. (2014) Minor Planet Bull. 41, 276-281.]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Fauerbach, M.; Fauerbach, M. (2019) Minor Planet Bull. 46, 138-139.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.274   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.910   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.92 deg.
U-B UB 0.500   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.92 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   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)

1830 Pogson (1968 HA)          Discovered 1968-Apr-17 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1968 HA = 1926 GW = 1929 EE = 1942 EC1 = 1945 BB = 1953 RE1 = 1955 FX = 1955 GE = 1961 AC = 1969 QM = 1971 BJ = 1972 NA1 = 1972 OC = 1972 OD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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