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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05577919984190093 1.5395e-08  
a 2.188876527755796 4.6358e-09 au
q 2.066782746484859 3.3697e-08 au
i 3.956289588183612 5.7374e-07 deg
node 147.4346317751617 1.0674e-05 deg
peri 335.7734504067814 1.1182e-05 deg
M 224.4346527141707 8.4731e-06 deg
tp 2459841.926973967164
(2022-Sep-19.42697397)
2.7859e-05 TDB
period 1182.851767347931
3.24
3.7578e-06
1.029e-08
d
yr
n .3043492092057783 9.6687e-10 deg/d
Q 2.310970309026732 4.8944e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3724  
   data-arc span      34773 days (95.20 yr)  
   first obs. used      1926-04-14  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:51:11  

Additional Information
 Earth MOID = 1.08336 au 
 Jupiter MOID = 2.70156 au 
 T_jup = 3.669 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457045.5 (2015-Jan-23.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05596042485430548 1.5457e-08  
q 2.066019805925256 3.3842e-08 au
tp 2457475.330812423094
(2016-Mar-27.83081242)
2.8202e-05 TDB
node 147.4713447851524 1.068e-05 deg
peri 335.3436100543329 1.1135e-05 deg
i 3.954551037919455 5.7368e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3724  
   data-arc span      34773 days (95.20 yr)  
   first obs. used      1926-04-14  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:51:11  

Additional Information
 Jupiter MOID = 2.70156 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.38910145315917E-16 -5.188485853115517E-16 -2.073279565343076E-13 7.655530976313575E-15 -5.964634713749767E-14 -8.977543006638699E-16
q -5.188485853115517E-16 1.145309577449593E-15 4.279207670688254E-13 -1.600913830442881E-14 1.208342465992433E-13 1.951782559071549E-15
tp -2.073279565343076E-13 4.279207670688254E-13 7.953729420772768E-10 9.623222231921937E-11 1.431196770613046E-10 1.892904208325323E-12
node 7.655530976313575E-15 -1.600913830442881E-14 9.623222231921937E-11 1.140693011526437E-10 -8.249378010185555E-11 3.584096136483924E-13
peri -5.964634713749767E-14 1.208342465992433E-13 1.431196770613046E-10 -8.249378010185555E-11 1.239807233554103E-10 2.122572346325418E-13
i -8.977543006638699E-16 1.951782559071549E-15 1.892904208325323E-12 3.584096136483924E-13 2.122572346325418E-13 3.291100655025507E-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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