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14638 (1998 WQ1)
Classification: Main-belt Asteroid          SPK-ID: 2014638
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487747686037162 3.3931e-08  
a 3.139981437627264 1.4904e-08 au
q 2.672831425824304 1.1281e-07 au
i 1.161118565862706 4.2321e-06 deg
node 195.9432537680894 0.0001599 deg
peri 255.6919673990501 0.00016063 deg
M 331.0268338687048 1.3764e-05 deg
tp 2459364.062034434401
(2021-May-29.56203443)
7.7836e-05 TDB
period 2032.305759389645
5.56
1.447e-05
3.962e-08
d
yr
n .1771386998913576 1.2612e-09 deg/d
Q 3.607131449430224 1.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1551  
   data-arc span      9948 days (27.24 yr)  
   first obs. used      1993-12-09  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:34:20  

Additional Information
 Earth MOID = 1.6895 au 
 Jupiter MOID = 1.58863 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457331.5 (2015-Nov-05.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433340053726207 3.3799e-08  
q 2.69297253007929 1.1182e-07 au
tp 2457327.103617808224
(2015-Oct-31.60361781)
8.2765e-05 TDB
node 195.9300174821704 0.00016057 deg
peri 255.5195914319804 0.00016137 deg
i 1.154227475063927 4.2329e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1551  
   data-arc span      9948 days (27.24 yr)  
   first obs. used      1993-12-09  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:34:20  

Additional Information
 Jupiter MOID = 1.58863 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.142393932559386E-15 -3.758956149969418E-15 -1.440635055841118E-13 7.892188193045123E-15 -4.762813140969324E-15 -3.614549631601953E-16
q -3.758956149969418E-15 1.250438206302182E-14 3.220764034612391E-13 -2.25794378131286E-14 -1.574747171898298E-14 1.361818300613407E-15
tp -1.440635055841118E-13 3.220764034612391E-13 6.850052394899518E-9 -4.654710446129875E-12 1.332983311175075E-9 2.218679854992837E-13
node 7.892188193045123E-15 -2.25794378131286E-14 -4.654710446129875E-12 2.578366153618726E-8 -2.577956094105511E-8 7.329985313914886E-11
peri -4.762813140969324E-15 -1.574747171898298E-14 1.332983311175075E-9 -2.577956094105511E-8 2.60405139665679E-8 -7.324532935849384E-11
i -3.614549631601953E-16 1.361818300613407E-15 2.218679854992837E-13 7.329985313914886E-11 -7.324532935849384E-11 1.791730500073323E-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 13.97   n/a E2021B10  
diameter diameter 8.177 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14638 (1998 WQ1)          Discovered 1998-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

[ 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
1902-Jan-28 16:11 00:03 Jupiter 1.63835097109867 1.63835055643835 1.63835138575852 1.78509709363057 1.46716654312835 2415778.174162671 2.62164972688602 76.8830080144707 35.9058098188507 -71.7790691751277 2089309.5068827 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
1912-Jun-23 16:39 00:02 Jupiter 1.74466894736412 1.74466801015353 1.74466988457401 1.90482711293252 1.63014805472726 2419577.194032331 2.29055629732765 57.533831009178 18.8668033844704 -82.6205721611533 1731069.69400733 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
1986-Feb-25 22:56 < 00:01 Jupiter 1.75340521834329 1.75340469385916 1.75340574282722 2.47003353281657 2.26603616263934 2446487.455255854 0.78723052813017 51.0418426135336 7.67412366253203 89.3577328847646 2332975.13574038 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
1996-Jul-12 08:37 < 00:01 Jupiter 1.63467999732222 1.63467967618176 1.63468031846259 1.67702281459108 1.33270008971586 2450276.859009876 0.518956358935481 57.6705775747231 38.9190525568495 70.4357031624266 2876693.28683089 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2006-Dec-08 03:12 < 00:01 Jupiter 1.86095801205985 1.86095759564618 1.86095842847342 2.26159346659306 2.05048700993873 2454077.633480794 0.302411958428818 35.8003433764471 7.23259697714256 88.0028089169354 2879048.07252343 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2070-Mar-20 22:55 00:01 Jupiter 1.9428797710823 1.94287916029687 1.94288038186795 3.62935067911092 3.50717287415932 2477191.455041093 1.11364261399396 58.388515760897 18.2781249057563 75.1411147357619 2861662.69428614 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2080-Aug-05 20:27 00:01 Jupiter 1.65468672590792 1.65468619338035 1.65468725843502 1.95409587881756 1.67173704667774 2480982.351977944 1.42379116586697 63.2749788581624 22.4171725413382 -73.4044938903697 1791175.6298189 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2090-Dec-25 15:02 00:02 Jupiter 1.67349815968849 1.67349770403221 1.67349861534458 1.73999866616179 1.41961881013632 2484776.126678424 1.66387582491963 49.5453874512451 29.3135051641735 83.1824993380209 2771177.63533263 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2101-May-27 19:39 00:02 Jupiter 1.9906458804977 1.99064490520147 1.99064685579439 2.73144765477126 2.57095382866782 2488581.318625145 1.88674128823254 81.3315545260497 14.2168867204598 69.8549473493613 2823431.24023648 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2164-Sep-05 23:39 00:03 Jupiter 1.81952802942105 1.81952664089554 1.81952941794937 2.90203413351532 2.73692650678224 2511693.485583396 3.27997919545062 149.017871684326 14.8303917456221 77.556269429715 2225610.08611256 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2175-Jan-18 02:00 00:04 Jupiter 1.61307159704814 1.61307119778885 1.61307199630696 1.69239638796243 1.34685086426241 2515479.583478732 3.55657386721465 112.593707117829 50.4677114183903 -52.0628317623544 1889314.94763288 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34
2185-Jun-09 16:07 00:04 Jupiter 1.77093035109624 1.77092884864378 1.7709318535478 2.01137151267319 1.75756381986142 2519275.171214563 3.76620076366326 81.0186773066053 11.5378453581004 84.8595633216935 1665530.45496099 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 00:34:28 2021-Apr-13 00:34

Alternate Designations
 1998 WQ1 = 1997 SZ28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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