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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05582129037473368 1.5432e-08  
a 2.18902975485459 4.5393e-09 au
q 2.066835289269919 3.3743e-08 au
i 3.954859304129672 5.7361e-07 deg
node 147.43957376368 1.0682e-05 deg
peri 335.2994820120663 1.1144e-05 deg
M 165.3076575563591 8.4163e-06 deg
tp 2458657.291702380125
(2019-Jun-22.79170238)
2.7755e-05 TDB
period 1182.975973611407
3.24
3.6797e-06
1.007e-08
d
yr
n .30431725413745 9.4658e-10 deg/d
Q 2.31122422043926 4.7927e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3682  
   data-arc span      34518 days (94.51 yr)  
   first obs. used      1926-04-14  
   last obs. used      2020-10-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:00:12  

Additional Information
 Earth MOID = 1.08287 au 
 Jupiter MOID = 2.70273 au 
 T_jup = 3.669 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457028.5 (2015-Jan-06.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05595457262266896 1.5464e-08  
q 2.066054967935551 3.3854e-08 au
tp 2457475.303349872443
(2016-Mar-27.80334987)
2.822e-05 TDB
node 147.471282928723 1.0683e-05 deg
peri 335.3335132749039 1.1138e-05 deg
i 3.954537698833034 5.7369e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3682  
   data-arc span      34518 days (94.51 yr)  
   first obs. used      1926-04-14  
   last obs. used      2020-10-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:00:12  

Additional Information
 Jupiter MOID = 2.70273 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.391198896694438E-16 -5.192402446727338E-16 -2.076514220716815E-13 7.62912954948593E-15 -5.971713551059234E-14 -8.990691926786425E-16
q -5.192402446727338E-16 1.146073654223083E-15 4.284132724417437E-13 -1.596753304367796E-14 1.209365280854492E-13 1.954094606038732E-15
tp -2.076514220716815E-13 4.284132724417437E-13 7.96367159105942E-10 9.635270340818968E-11 1.433130899373074E-10 1.895239169977314E-12
node 7.62912954948593E-15 -1.596753304367796E-14 9.635270340818968E-11 1.141167070873614E-10 -8.250325960580069E-11 3.582925570076661E-13
peri -5.971713551059234E-14 1.209365280854492E-13 1.433130899373074E-10 -8.250325960580069E-11 1.240516774220595E-10 2.130860905333261E-13
i -8.990691926786425E-16 1.954094606038732E-15 1.895239169977314E-12 3.582925570076661E-13 2.130860905333261E-13 3.291192865536673E-13

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 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

[ show close-approach data ]
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 | Close-Approach Data ]
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