Observation information
- date-obs: 2021-12-24
- time-obs: 22:13:30.151200000
- date-end: 2021-12-25
- time-end: 06:59:47.029300000
- obs_id: A11_037T01_9000004818
- exposure: 18465.9388515
- 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_9000004818cztM0_level2_bc.evt
| modeM0/AS1A11_037T01_9000004818cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,422,682,560 | 355,282,560 |
Size | 1.3 GB
| 338.8 MB
|
Events in quadrant A | 8,704,916 | 2,299,787 |
Events in quadrant B | 10,024,590 | 2,295,987 |
Events in quadrant C | 7,524,570 | 2,319,853 |
Events in quadrant D | 15,169,430 | 2,164,800 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 71 | 0 |
B | 0 | 71 | 0 |
C | 0 | 71 | 0 |
D | 0 | 71 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 61204 | 0 |
B | 0 | 69834 | 0 |
C | 0 | 55245 | 0 |
D | 0 | 83645 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 500 | 0 |
B | 0 | 500 | 0 |
C | 0 | 500 | 0 |
D | 0 | 500 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 24415 | 729 | 2.985869% |
B | 24415 | 1788 | 7.323367% |
C | 24415 | 310 | 1.269711% |
D | 24415 | 1402 | 5.742371% |
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 | 31579 | 24420 | 248 | 248 | 0.79% | 1.02% |  |
B | 31579 | 24413 | 43 | 43 | 0.14% | 0.18% |  |
C | 31579 | 24416 | 48 | 48 | 0.15% | 0.20% |  |
D | 31579 | 24415 | 112 | 112 | 0.35% | 0.46% |  |
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 | 14 | 4 | 2464599 | 9173.57 | 1210 | 1191 | 268.5 |
A | 15 | 169 | 1162194 | 4323.5 | 1210 | 1191 | 268.5 |
A | 15 | 237 | 284203 | 1053.92 | 1210 | 1191 | 268.5 |
B | 5 | 172 | 3268841 | 13696.41 | 1199 | 1175 | 238.6 |
B | 15 | 222 | 507446 | 2122.03 | 1199 | 1175 | 238.6 |
B | 0 | 189 | 396313 | 1656.22 | 1199 | 1175 | 238.6 |
C | 15 | 214 | 1007978 | 3644.47 | 1204 | 1195 | 276.2 |
C | 9 | 187 | 691045 | 2497.2 | 1204 | 1195 | 276.2 |
C | 3 | 233 | 514435 | 1857.88 | 1204 | 1195 | 276.2 |
D | 8 | 195 | 6135807 | 19663.43 | 1177 | 1151 | 312.0 |
D | 2 | 250 | 1122327 | 3593.71 | 1177 | 1151 | 312.0 |
D | 12 | 233 | 1034744 | 3312.98 | 1177 | 1151 | 312.0 |
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 |  |