Observation information
- date-obs: 2022-01-08
- time-obs: 20:15:20.830400000
- date-end: 2022-01-09
- time-end: 08:59:06.853700000
- obs_id: A11_037T01_9000004858
- exposure: 18683.5881628
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_037T01_9000004858cztM0_level2_bc.evt
| modeM0/AS1A11_037T01_9000004858cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,194,948,800 | 402,865,920 |
Size | 2.0 GB
| 384.2 MB
|
Events in quadrant A | 9,875,474 | 2,019,093 |
Events in quadrant B | 11,459,499 | 2,840,456 |
Events in quadrant C | 10,508,973 | 2,789,945 |
Events in quadrant D | 32,343,869 | 2,248,041 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 117468 | 0 |
B | 0 | 85553 | 0 |
C | 0 | 78159 | 0 |
D | 0 | 173866 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 686 | 0 |
B | 0 | 686 | 0 |
C | 0 | 682 | 0 |
D | 0 | 686 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 113 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 113 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 33426 | 11147 | 33.348292% |
B | 33466 | 1136 | 3.394490% |
C | 33457 | 436 | 1.303165% |
D | 33456 | 11546 | 34.511000% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 45827 | 32094 | 20 | 20 | 0.04% | 0.06% |  |
B | 45827 | 33485 | 68 | 68 | 0.15% | 0.20% |  |
C | 45827 | 33483 | 36 | 36 | 0.08% | 0.11% |  |
D | 45827 | 33476 | 530 | 530 | 1.16% | 1.58% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 15 | 169 | 4685157 | 16178.2 | 1302 | 1281 | 289.5 |
A | 13 | 6 | 57294 | 193.47 | 1302 | 1281 | 289.5 |
A | 14 | 238 | 53046 | 178.8 | 1302 | 1281 | 289.5 |
B | 5 | 172 | 2674148 | 7514.32 | 1839 | 1804 | 355.6 |
B | 0 | 190 | 482539 | 1351.77 | 1839 | 1804 | 355.6 |
B | 0 | 182 | 369594 | 1034.18 | 1839 | 1804 | 355.6 |
C | 15 | 214 | 1372078 | 3338.27 | 1813 | 1804 | 410.5 |
C | 3 | 233 | 822031 | 1998.24 | 1813 | 1804 | 410.5 |
C | 0 | 10 | 647946 | 1574.14 | 1813 | 1804 | 410.5 |
D | 12 | 33 | 17108680 | 45649.88 | 1530 | 1485 | 374.7 |
D | 8 | 195 | 4244078 | 11321.19 | 1530 | 1485 | 374.7 |
D | 2 | 250 | 1017385 | 2710.89 | 1530 | 1485 | 374.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |