The Museum of HP Calculators


Orbit Determination by Method of Gauss for the HP-41C/CV/CX

This program is Copyright © HP and is used here by permission. It was originally printed in the HP-67 Space Science Solution Book. This program was entered and uploaded by Tony Duell.

This program is supplied without representation or warranty of any kind. Tony Duell, Hewlett Packard and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.

Documentation Information (CD or source code)
How to get this Program to your Calculator (via HP-IL, disk, wand, and fingers)
Download Binary (.raw) program for disk or PC HP-IL Card download
Download Hexadecimal (.dat) program for Serial Port download

Program Listing

LINE  KEYS
 01 LBL "ORBITG"
 02 LBL 10
 03 LBL A
 04 STO 20
 05 RDN
 06 STO 21
 07 STOP
 08 LBL 11
 09 LBL B
 10 STO 01
 11 RDN
 12 STO 02
 13 RDN
 14 STO 03
 15 RDN
 16 STO 22
 17 STOP
 18 LBL 12
 19 LBL C
 20 STO 04
 21 RDN
 22 STO 05
 23 RDN
 24 STO 06
 25 RDN
 26 STO 23
 27 STOP
 28 LBL 14
 29 LBL E
 30 RAD
 31 RCL 23
 32 RCL 22
 33 -
 34 RCL 20
 35 *
 36 STO 23
 37 RCL 01
 38 RCL 02
 39 R-P
 40 RCL 03
 41 R-P
 42 STO 00
 43 RCL 04
 44 RCL 05
 45 R-P
 46 RCL 06
 47 R-P
 48 STO 07
 49 RCL 01
 50 RCL 04
 51 *
 52 RCL 02
 53 RCL 05
 54 *
 55 +
 56 RCL 03
 57 RCL 06
 58 *
 59 +
 60 RCL 00
 61 /
 62 RCL 07
 63 /
 64 ACOS
 65 2
 66 /
 67 COS
 68 RCL 00
 69 RCL 07
 70 *
 71 SQRT
 72 *
 73 STO 24
 74 RCL 00
 75 RCL 07
 76 +
 77 RCL 24
 78 /
 79 4
 80 /
 81 .5
 82 -
 83 RCL 23
 84 X^2
 85 RCL 21
 86 *
 87 RCL 24
 88 2
 89 *
 90 3
 91 Y^X
 92 /
 93 7P<>S
 94 STO 00
 95 RDN
 96 STO 01
 97 1
 98 STO 02
 99 LBL 09
100 RCL 02
101 X^2
102 1/X
103 RCL 00
104 *
105 RCL 01
106 -
107 STO 04
108 4
109 *
110 1
111 RCL 04
112 -
113 *
114 SQRT
115 STO 05
116 1
117 RCL 04
118 2
119 *
120 -
121 R-P
122 X<>Y
123 2
124 *
125 STO 06
126 ENTER
127 SIN
128 -
129 RCL 05
130 3
131 Y^X
132 /
133 RCL 01
134 RCL 04
135 +
136 *
137 1
138 +
139 RCL 02
140 X<>Y
141 STO 02
142 /
143 1
144 -
145 7FIX
146 7DSP9
147 RND
148 X#0?
149 GTO 09
150 RCL 23
151 RCL 21
152 SQRT
153 *
154 2
155 /
156 RCL 02
157 /
158 RCL 24
159 /
160 RCL 05
161 /
162 RCL 06
163 7P<>S
164 STO 09
165 X<>Y
166 STO 08
167 X^2
168 ST* 08
169 RCL 00
170 /
171 RCL 09
172 COS
173 1
174 -
175 *
176 1
177 +
178 STO 25
179 RCL 09
180 SIN
181 LASTX
182 -
183 RCL 08
184 *
185 RCL 21
186 SQRT
187 /
188 RCL 23
189 +
190 RCL 20
191 /
192 STO 24
193 7DSP9
194 RCL 04
195 RCL 01
196 XEQ 08
197 STO 04
198 RCL 05
199 RCL 02
200 XEQ 08
201 STO 05
202 RCL 06
203 RCL 03
204 XEQ 08
205 STO 06
206 0
207 X<>Y
208 RCL 05
209 RCL 04
210 7PRSTK
211 STOP
212 GTO 00
213 LBL 08
214 7SCI
215 RCL 25
216 *
217 -
218 RCL 24
219 /
220 RTN
221 STOP
222 END

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