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1819 Laputa (1948 PC)
Classification: Main-belt Asteroid          SPK-ID: 2001819
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2290975699441662 1.2055e-08  
a 3.136741118211089 1.2261e-08 au
q 2.418121350484982 3.8367e-08 au
i 23.90930094857381 9.8127e-07 deg
node 122.1126933082498 9.9345e-07 deg
peri 166.2924519576282 5.8957e-06 deg
M 4.254412611426539 4.1884e-06 deg
tp 2459176.519758697387
(2020-Nov-23.01975870)
2.3556e-05 TDB
period 2029.160699118499
5.56
1.1897e-05
3.257e-08
d
yr
n .1774132527583399 1.0402e-09 deg/d
Q 3.855360885937196 1.507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2974  
   data-arc span      33518 days (91.77 yr)  
   first obs. used      1929-02-03  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:59:17  

Additional Information
 Earth MOID = 1.40512 au 
 Jupiter MOID = 1.42473 au 
 T_jup = 3.041 
[ 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 10.45   n/a E2021B10  
diameter diameter 54.165 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.8004 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Protitch-Benishek, V. (2010) Minor Planet Bull. 37, 64-65.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.050   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1819 Laputa (1948 PC)          Discovered 1948-Aug-09 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1979-May-21 19:22 < 00:01 Jupiter 1.67941784965239 1.67941703280357 1.67941866650702 5.2272911613555 5.12989894804628 2444015.306816083 0.633820574017921 164.195779832579 5.47867062732134 -75.7874239813191 14659158.0237753 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00
1990-Mar-28 17:14 < 00:01 Jupiter 1.49168834210921 1.49168805932419 1.49168862489491 5.27902191466483 5.17034005043535 2447979.218064907 0.368442076657838 59.5619979743504 7.00612767562196 78.2959256278116 12977222.8297561 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00
2074-Jan-31 22:05 < 00:01 Jupiter 1.56507233397868 1.56507150943524 1.56507315853146 5.24577139706211 5.14156694944493 2478604.419860945 0.830546552403911 198.470412530179 5.09587850058587 -78.1618033446084 14520157.0672028 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00
2084-Dec-12 07:23 00:01 Jupiter 1.57998400733732 1.57998283050781 1.5799851841706 5.30192374606743 5.19982732046215 2482571.807929914 1.04973964804849 137.932816078054 8.13576659293737 65.0576365612873 12549099.3331881 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00
2168-Oct-18 21:21 00:02 Jupiter 1.47188583270202 1.47188442641737 1.47188723903611 5.26471010612252 5.1542446034912 2513197.389790171 2.08591942158398 436.623999983024 4.64684886089114 -80.787031509274 14328921.0452553 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00
2179-Aug-26 20:39 00:03 Jupiter 1.69507911414889 1.6950757114246 1.69508251688821 5.30486268142197 5.20981555565834 2517161.360583774 2.62085735553008 305.461244726592 9.31321341373259 56.2025655132939 12596528.9806601 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:00:38 2021-Apr-12 13:00

Alternate Designations
 1948 PC = 1929 CN = 1974 DY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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