Tabular Sky Backgrounds
We provide a table of the high sky background numbers as plotted in Figure 6.1, for easy reference. See the text and the caption in Figure 6.1 for more details. The high sky values are defined as the earthshine at 24° from the limb and by the typical zodiacal light of mV = 22.7.
Table 6.6: High Sky Backgrounds
| Wavelength |
Earthshine |
Zodiacal Light |
Total Background |
| Å |
erg sec-1 cm-2 Å-1 arcsec-2 |
erg sec-1 cm-2 Å-1 arcsec-2 |
erg sec-1 cm-2 Å-1 arcsec-2 |
| 1000. |
4.8E-23 |
7.3E-29 |
4.8E-23 |
| 1100. |
8.8E-22 |
6.0E-27 |
8.8E-22 |
| 1200. |
8.0E-23 |
6.1E-26 |
8.0E-23 |
| 1400. |
8.6E-25 |
1.5E-24 |
2.3E-24 |
| 1500. |
8.3E-25 |
5.3E-24 |
6.1E-24 |
| 1600. |
5.1E-25 |
1.3E-22 |
1.3E-22 |
| 1700. |
1.6E-24 |
4.1E-21 |
4.1E-21 |
| 1800. |
1.9E-22 |
8.8E-21 |
8.9E-21 |
| 1900. |
8.8E-22 |
1.3E-20 |
1.4E-20 |
| 2000. |
2.0E-21 |
2.0E-20 |
2.2E-20 |
| 2100. |
3.2E-21 |
7.0E-20 |
7.4E-20 |
| 2200. |
1.5E-21 |
1.3E-19 |
1.3E-19 |
| 2300. |
6.6E-22 |
1.0E-19 |
1.0E-19 |
| 2400. |
5.0E-22 |
1.0E-19 |
1.0E-19 |
| 2500. |
4.8E-22 |
1.4E-19 |
1.4E-19 |
| 2600. |
1.1E-21 |
1.7E-19 |
1.7E-19 |
| 2700. |
1.4E-20 |
5.8E-19 |
5.9E-19 |
| 2800. |
4.1E-21 |
1.6E-19 |
1.7E-19 |
| 2900. |
8.6E-20 |
1.2E-18 |
1.3E-18 |
| 3000. |
1.9E-19 |
7.0E-19 |
8.8E-19 |
| 3100. |
4.1E-19 |
8.5E-19 |
1.3E-18 |
| 3200. |
7.2E-19 |
1.3E-18 |
2.0E-18 |
| 3400. |
1.3E-18 |
1.6E-18 |
2.9E-18 |
| 3500. |
1.6E-18 |
1.6E-18 |
3.2E-18 |
| 3600. |
2.1E-18 |
1.8E-18 |
3.9E-18 |
| 3700. |
2.4E-18 |
1.9E-18 |
4.3E-18 |
| 3800. |
2.5E-18 |
1.9E-18 |
4.3E-18 |
| 3900. |
3.0E-18 |
1.9E-18 |
5.0E-18 |
| 4000. |
4.8E-18 |
2.8E-18 |
7.5E-18 |
| 4200. |
4.8E-18 |
2.9E-18 |
7.7E-18 |
| 4400. |
6.0E-18 |
2.9E-18 |
8.9E-18 |
| 4600. |
6.8E-18 |
3.1E-18 |
1.0E-17 |
| 4800. |
6.7E-18 |
3.4E-18 |
1.0E-17 |
| 5000. |
6.9E-18 |
3.0E-18 |
9.9E-18 |
| 5200. |
6.9E-18 |
2.8E-18 |
9.7E-18 |
| 5400. |
7.1E-18 |
2.8E-18 |
9.9E-18 |
| 5600. |
7.4E-18 |
2.7E-18 |
1.0E-17 |
| 5800 |
7.4E-18 |
2.7E-18 |
1.0E-17 |
| 6000. |
7.3E-18 |
2.6E-18 |
9.9E-18 |
| 6200. |
7.0E-18 |
2.5E-18 |
9.5E-18 |
| 6400. |
6.8E-18 |
2.5E-18 |
9.3E-18 |
| 6600. |
6.7E-18 |
2.4E-18 |
9.1E-18 |
| 6800. |
6.5E-18 |
2.3E-18 |
8.8E-18 |
| 7000. |
6.3E-18 |
2.2E-18 |
8.5E-18 |
| 7200. |
6.2E-18 |
2.2E-18 |
8.3E-18 |
| 7400. |
5.9E-18 |
2.0E-18 |
7.9E-18 |
| 7600. |
5.8E-18 |
1.7E-18 |
7.5E-18 |
| 7800. |
5.6E-18 |
1.8E-18 |
7.4E-18 |
| 8000. |
5.4E-18 |
1.7E-18 |
7.2E-18 |
| 8200. |
5.2E-18 |
1.7E-18 |
6.9E-18 |
| 8400. |
5.1E-18 |
1.6E-18 |
6.7E-18 |
| 8600. |
4.9E-18 |
1.6E-18 |
6.4E-18 |
| 8800. |
4.7E-18 |
1.5E-18 |
6.2E-18 |
| 9000. |
4.5E-18 |
1.3E-18 |
5.9E-18 |
| 9200. |
4.4E-18 |
1.3E-18 |
5.8E-18 |
| 9400. |
4.3E-18 |
1.6E-18 |
5.9E-18 |
| 9600. |
4.2E-18 |
1.3E-18 |
5.6E-18 |
| 9800. |
4.1E-18 |
1.2E-18 |
5.3E-18 |
| 10000. |
3.9E-18 |
1.1E-18 |
5.0E-18 |
| 10200. |
3.8E-18 |
1.1E-18 |
4.8E-18 |
| 10400. |
3.6E-18 |
1.0E-18 |
4.7E-18 |
| 10700. |
3.5E-18 |
9.8E-19 |
4.4E-18 |
| 10800. |
3.4E-18 |
9.6E-19 |
4.4E-18 |
| 11000. |
3.3E-18 |
9.3E-19 |
4.2E-18 |
Table 6.7: Geocoronal Emission Lines
| Wavelength
(Å) |
ID |
Line Width (Å) |
Intensity |
| Day |
Night |
| kilo-
Rayleighs |
erg s-1 cm-2 arcsec-2 |
kilo-
Rayleighs |
erg s-1 cm-2 arcsec-2 |
| 1216 |
Ly  |
0.04 |
~20 |
6.1 x 10-13 |
2 |
6.1 x 10-14 |
| 1304 |
O I |
0.013 |
~2 |
5.7 x 10-14 |
0.013 |
3.8 x 10-16 |
| 1356 |
O I] |
0.013 |
~0.2 |
~5 x 10-15 |
~ 0.001 |
~3 x 10-17 |
| 2471 |
[O I] |
0.023 |
< 0.2 |
<3 x 10-15 |
< 0.001 |
<1.5 x 10-17 |