| Date: | 2004-08-18 14:26:00 | |
| Sender: | Georg Kirchner <###FROM###> | |
| Subject: | [SLR-Mail] No. 1248: NP Format: kHz results included now in Graz NPs | |
| Author: | Georg Kirchner | |
| Content: | ******************************************************************************** SLR Electronic Mail 2004-08-18 14:26:00 UTC Message No. 1248 ******************************************************************************** Author: Georg Kirchner Subject: NP Format: kHz results included now in Graz NPs Dear colleagues, as known now since some time, the kHz system returns exceed the maximum of 9999 points per NP in the NP format; to solve that, Werner Gurtner suggested: - Keep the presently used bytes 44-47 for the number of points/NP - Use byte 49 (presently unused) to indicate the power of ten with which to multiply the number stored in 44-47 - Increase NP format revision number (byte 55 of NP header record) from ”1” to ”2”. Example: If we have 105678 returns for a single LAGEOS NP (our present maximum ...), we write: 1056 Bytes 44-47 2 Byte 49 This indicates 1056 * 10**2 = 105600 points in this NP (close enough to the exact value ...) To start at least with a test phase, we have implemented now this change (as described above); this allows anybody who is interested in such analysis to start immediately, and it should not hurt anybody else. Please let us know if there are any unexpected problems with these tests / changes Best regards, Georg -- ******************************************************************************** |