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    24-Jul-2014
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2.1.2 Data size

Table 2.3 and Table 2.4 give the typical size of the main GOMOS products and of the auxiliary files. Figures for the main products are given for occultations of various durations, as the size of those products depends on the occultation duration. The size of the auxiliary products does not depend on the occultation duration.

Product

30s duration

50s duration

75s duration

255s duration

Level 0

0.7

1.2

1.8

6.1

Level 1b

2.7

4.5

6.7

22.8

Limb

1.7

2.8

4.3

14.4

Level 2

0.08

0.13

0.19

0.63

Extinction

1.8

3.1

4.6

15.5

Table 2.3: Typical size of GOMOS products for several occultation durations (Mbytes).

Auxiliary product

Naming convention

Size (kBytes)

Calibration database

GOM_CAL_AX

1846

Star catalogue

GOM_CAT_AX

426

Stellar Spectra

GOM_STS_AX

843

Level 1b processing configuration database

GOM_PR1_AX

2

Level 2 processing configuration database

GOM_PR2_AX

19

Cross section database

GOM_CRS_AX

12267

Instrument physical characteristics data

GOM_INS_AX

10

Table 2.4: Typical size of GOMOS auxiliary products (Kbytes).

 

Table 2.5 gives the typical size for a set of all level products. Figures are given for a case of 35 occultations per orbit (typical case before 01/2005) and for a case of 20 occultations per orbit (typical case after 08/2005).

 

Product set

35 occultations per orbit

20 occultations per orbit

One occultation: L0+L1b+L2

12

12

One orbit: L0+L1b+L2

400

240

One day (14 orbits): L0+L1b+L2

5900

3400

One week (7 days): L0+L1b+L2

41200

23500

Table 2.5: Size figures (Mbytes) for sets of all level products, for a case with 35 occultations per orbit and for a case with 20 occultations per orbit.

The occultation duration is assumed to be of 50s.