NASA TP/1998-206861 (ERRATA-1)

Table 6.2.1—1. Orbital characteristics for satellites used in JGM—1 and JGM—2.

Satellite	a (km)	e	Inclination (° )	Perigee Height (km)	Mean Motion (rev/d)	Primary Resonant Period (d)	Data Type
ATS—6	41867	.0010	0.9	35781	1.01	92.8	SST
Peole	7006	.0162	15.0	515	14.82	2.1	L
Courier—1B	7469	.0174	28.3	989	13.46	3.8	O
Vanguard—2	8298	.1648	32.9	562	11.49	2.7	O
Vanguard—2RB	8496	.1832	32.9	562	11.09	294.3	O
DI—D	7622	.0842	39.5	589	13.05	8.4	O,L
DI—C	7341	.0526	40.0	587	13.81	2.5	O,L
BE—C	7507	.0252	41.2	902	13.35	5.6	O,L
Telstar—1	9669	.2421	44.8	951	9.13	14.9	O
Echo—1RB	7966	.0121	47.2	1501	12.21	11.9	O
Starlette	7331	.0200	49.8	785	13.83	2.8	L
Ajisai	7870	.0010	50.0	1487	12.43	3.2	L
Anna—1B	7501	.0070	51.5	1076	13.37	4.8	O
GEOS—1	8075	.0725	59.3	1108	11.96	7.0	O,L
ETALON—1	25501	.0007	64.9	19121	2.13	7.9	L
TOPEX/POSEIDON	7716	.0004	66.0	1342	12.80	3.2	L,D
Transit—4A	7322	.0079	66.8	806	13.85	3.5	O
Injun—1	7316	.0076	66.8	895	13.87	3.8	O
Secor—5	8151	.0801	69.2	1140	11.79	3.4	O
BE—B	7354	.0143	79.7	902	13.76	3.0	O
OGO—2	7341	.0739	87.4	425	13.79	3.8	O
OSCAR—14	7448	.0030	89.2	1042	13.50	2.2	Dp
OSCAR—7	7411	.0242	89.7	848	13.60	3.2	Dp
5BN—2	7462	.0058	90.0	1063	13.46	2.4	O
NOVA	7559	.0010	90.0	1123	13.20	6.3	Dp
Midas—4	9995	.0121	95.8	1505	8.69	3.0	O
SPOT—2	7208	.0015	98.7	840	14.17	6.2	D
GEOS—2	7711	.0308	105.8	1114	12.82	5.7	O,L
SEASAT	7171	.0010	108.0	812	14.29	3.1	O,L,R,A
GEOSAT	7169	.0010	108.0	754	14.30	3.0	Dp,A
LAGEOS	12273	.0010	109.9	5827	6.39	2.7	L
GEOS—3	7226	.0010	114.9	841	14.13	4.5	L,A,SST
OVI—2	8317	.1835	144.3	415	11.45	2.2	O

Key: L = Laser, Dp = TRANET/OPNET Doppler, O = Optical, D = DORIS, R = Radar, A = Altimetry,

SST = sat-to-sat range rate

Table 7.3.4—1. Comparison of ocean tidal terms from the GEM—T3-derived tidal model PGS4846X and EGM96. PGS4846X uncertainties are from the GEM—T3 solution.

Tide Line			PGS4846X				EGM96
	l	q	amplitude	s (cm)	phase	s (° )	amplitude	s (cm)	phase	s (° )
M_m	2	0	0.84	�0.27	260.1	�18.6	0.90	�0.13	259.2	�7.9
	3	0	0.97	0.59	37.8	34.6	0.33	0.22	59.1	37.6
S_a	2	0	2.65	0.29	26.3	6.8	2.55	0.17	40.0	3.9
	3	0	5.17	0.52	313.9	5.8	2.59	0.26	290.2	5.4
M_f	2	0	2.05	0.28	240.4	7.8	2.05	0.16	250.0	4.4
	3	0	0.44	0.69	337.1	84.8	0.25	0.28	289.9	63.5
	4	0	0.52	—	99.1	—	1.42	0.88	124.4	35.7
	5	0	0.48	—	239.7	—	0.39	0.28	182.3	40.0
S_sa	2	0	1.61	0.30	255.9	10.8	1.48	0.14	275.6	5.2
	3	0	0.53	0.51	54.1	55.3	0.88	0.24	100.2	15.2
K₁	2	1	2.78	0.12	325.1	2.6	2.83	0.11	319.4	2.3
	3	1	0.79	0.09	13.6	6.9	0.95	0.05	33.5	2.8
	4	1	2.39	0.17	257.2	4.2	2.30	0.09	257.1	2.3
	5	1	2.23	0.20	107.8	4.9	1.92	0.06	114.0	1.8
	6	1	0.17	—	275.5	—	0.26	0.28	274.1	60.3
O₁	2	1	2.70	0.11	314.5	2.4	2.73	0.08	314.8	1.7
	3	1	1.37	0.13	79.5	5.6	1.57	0.05	83.7	1.7
	4	1	1.84	0.18	282.5	5.4	1.76	0.10	274.5	3.0
	5	1	1.59	0.18	121.6	6.6	1.21	0.06	115.2	3.0
	6	1	0.18	—	284.2	—	0.33	0.27	323.2	47.4
P₁	2	1	0.97	0.13	313.9	7.5	0.98	0.08	316.3	4.9
	3	1	0.38	0.09	6.5	14.5	0.27	0.05	30.0	10.4
	4	1	0.84	0.18	256.1	12.1	0.75	0.06	262.2	5.2
	5	1	0.76	0.20	122.9	14.3	0.47	0.06	114.5	7.5
Q₁	2	1	0.53	—	313.7	—	0.59	0.08	321.8	7.9
	3	1	0.32	—	104.2	—	0.20	0.05	98.3	14.8
	4	1	0.29	—	288.1	—	0.40	0.08	278.1	11.5
	5	1	0.22	—	112.3	—	0.26	0.07	126.5	15.7
K₂	2	2	0.34	0.04	315.9	6.6	0.27	0.03	327.5	5.5
	3	2	0.19	0.04	188.5	8.0	0.18	0.01	184.3	3.3
	4	2	0.15	0.04	105.5	14.1	0.13	0.02	120.8	8.7
	5	2	0.06	0.03	90.3	27.1	0.03	0.01	58.0	17.0
	6	2	0.04	0.04	358.3	50.0	0.02	0.02	11.1	61.0
M₂	2	2	3.31	0.04	321.1	0.7	3.27	0.03	321.9	0.6
	3	2	0.25	0.05	155.8	11.2	0.27	0.02	167.4	3.6
	4	2	0.98	0.04	125.8	2.3	1.05	0.03	130.0	1.6
	5	2	0.31	0.03	15.2	5.3	0.29	0.01	10.9	2.3
	6	2	0.39	0.04	317.2	6.4	0.44	0.03	329.3	4.3
	7	2	0.09	—	199.2	—	0.13	0.01	198.9	5.2
	8	2	0.13	—	214.3	—	0.16	0.03	193.0	12.1
S₂	2	2	0.78	0.02	301.0	2.9	0.76	0.03	304.1	2.3
	3	2	0.29	0.03	223.1	6.3	0.28	0.02	222.4	3.1
	4	2	0.36	0.04	94.0	5.9	0.38	0.02	102.3	2.7
	5	2	0.16	0.03	17.0	11.3	0.15	0.01	22.5	4.4
	6	2	0.17	0.04	276.8	13.3	0.15	0.02	287.0	6.7
	7	2	0.04	—	142.6	—	0.03	0.01	105.6	16.1
N₂	2	2	0.69	0.06	334.3	4.7	0.65	0.03	335.8	2.9
	3	2	0.10	0.05	152.2	30.0	0.08	0.02	169.4	11.1
	4	2	0.23	0.04	140.2	10.2	0.24	0.02	143.7	5.9
	5	2	0.08	0.03	354.5	23.0	0.08	0.01	0.6	6.8
	6	2	0.07	0.05	358.0	36.7	0.08	0.02	10.8	13.4
T₂	2	2	0.04	0.04	321.1	49.1	0.04	0.03	294.7	41.9
	3	2	0.02	0.03	340.9	80.0	0.02	0.01	328.2	36.2
	4	2	0.05	0.04	149.9	45.5	0.03	0.02	135.0	46.4
	5	2	0.06	0.03	57.0	25.5	0.04	0.01	29.1	11.7
	6	2	0.03	0.04	183.0	64.8	0.02	0.02	275.0	43.6

Table 7.3.4—2. Comparison of ocean tidal resonant terms: updated altimeter-derived model [Schrama and Ray 1994; Ray, private communication, 1997] vs. the EGM96 dynamic solution.

Tide Line			Altimetric				EGM96 Dynamic
	l	q	amp.	s (cm)	phase	s (° )	amp.	s (cm)	phase	s (° )
K₁	2	1	3.00	—	317.57	—	2.83	�0.11	319.4	�2.3
	3	1	0.98	—	34.26	—	0.95	0.05	33.5	2.8
	4	1	2.08	—	254.10	—	2.30	0.09	257.1	2.3
O₁	2	1	2.59	—	313.91	—	2.73	0.08	314.8	1.7
	3	1	1.36	—	84.27	—	1.57	0.05	83.7	1.7
	4	1	1.51	—	279.96	—	1.76	0.10	274.5	3.0
M₂	2	2	3.23	—	320.62	—	3.27	0.03	321.8	0.6
	3	2	0.30	—	168.99	—	0.27	0.02	167.4	3.6
	4	2	1.06	—	130.20	—	1.05	0.03	130.0	1.6
S₂	2*	2*	1.24	—	318.09	—	0.76	0.03	304.1	2.3
	3	2	0.30	—	205.69	—	0.28	0.02	222.4	3.1
	4*	2*	0.37	—	106.46	—	0.38	0.02	102.3	2.7
N₂	2	2	0.70	—	330.49	—	0.65	0.03	335.9	2.9
	3	2	0.11	—	172.64	—	0.08	0.02	169.4	11.1
	4	2	0.24	—	141.35	—	0.24	0.02	143.7	5.9

* The EGM96 dynamic solution for these terms includes the S₂ atmospheric tide.