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4018 Bratislava (1980 YM)
Classification: Main-belt Asteroid          SPK-ID: 2004018
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .16404483457895 4.4112e-08  
a 2.580590190550214 8.9899e-09 au
q 2.157257699625343 1.13e-07 au
i 3.432310895124285 4.1228e-06 deg
node 252.2891463702084 7.0965e-05 deg
peri 158.1653309680433 7.192e-05 deg
M 227.5208966481929 1.2231e-05 deg
tp 2459557.713807208831
(2021-Dec-09.21380721)
5.2353e-05 TDB
period 1514.178202599096
4.15
7.9123e-06
2.166e-08
d
yr
n .2377527290922942 1.2424e-09 deg/d
Q 3.003922681475085 1.0465e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1845  
   data-arc span      15492 days (42.41 yr)  
   first obs. used      1978-05-09  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:08  

Additional Information
 Earth MOID = 1.16837 au 
 Jupiter MOID = 2.36183 au 
 T_jup = 3.403 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456506.5 (2013-Aug-02.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646754092984656 4.409e-08  
q 2.154054075900751 1.1271e-07 au
tp 2456534.599383706221
(2013-Aug-30.09938371)
4.938e-05 TDB
node 252.3554014745555 7.0877e-05 deg
peri 158.7213183574103 7.1819e-05 deg
i 3.435304059725389 4.1272e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1845  
   data-arc span      15492 days (42.41 yr)  
   first obs. used      1978-05-09  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:08  

Additional Information
 Jupiter MOID = 2.36183 au 
 T_jup = 3.403 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.943953078974816E-15 -4.958039428121751E-15 -1.556335823440284E-13 7.326658854860039E-15 -1.164676199293652E-13 7.59582445062237E-16
q -4.958039428121751E-15 1.270311012193844E-14 3.892113813209651E-13 -2.082686227029575E-14 2.963564666181638E-13 -1.866947799105965E-15
tp -1.556335823440284E-13 3.892113813209651E-13 2.438376530582201E-9 -7.655150224170228E-12 5.867130240459153E-10 -8.117335277141327E-13
node 7.326658854860039E-15 -2.082686227029575E-14 -7.655150224170228E-12 5.023507999384066E-9 -5.016275753457949E-9 -7.177425564962966E-11
peri -1.164676199293652E-13 2.963564666181638E-13 5.867130240459153E-10 -5.016275753457949E-9 5.157949912822117E-9 7.142643393330413E-11
i 7.59582445062237E-16 -1.866947799105965E-15 -8.117335277141327E-13 -7.177425564962966E-11 7.142643393330413E-11 1.703352996113832E-11

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 13.6   n/a MPO473821  
diameter diameter 11.577 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4018 Bratislava (1980 YM)          Discovered 1980-Dec-30 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 YM = 1978 JP3 = 1979 OH16 = 1981 AJ1 = 1981 BE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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