Observation information
- date-obs: 2023-08-15
- time-obs: 05:35:08.371800000
- date-end: 2023-08-15
- time-end: 07:35:07.364700000
- obs_id: A12_061T07_9000005818
- exposure: 4767.74923778
- sourceid: NGC1808
- observer: jyoti
- ra_pnt: 76.92641
- dec_pnt: -37.51306
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_061T07_9000005818_42606cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005818_42606cztM0_level2_quad_clean.evt
|
Size (bytes) | 298,465,920 | 85,109,760 |
Size | 284.6 MB
| 81.2 MB
|
Events in quadrant A | 2,689,518 | 566,178 |
Events in quadrant B | 2,427,562 | 582,520 |
Events in quadrant C | 2,583,108 | 566,087 |
Events in quadrant D | 2,968,400 | 521,037 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10792 | 2 |
B | 0 | 10286 | 3 |
C | 0 | 10451 | 2 |
D | 0 | 12128 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 98 | 0 |
B | 0 | 98 | 0 |
C | 0 | 98 | 0 |
D | 0 | 98 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4871 | 9 | 0.184767% |
B | 4870 | 13 | 0.266940% |
C | 4870 | 27 | 0.554415% |
D | 4870 | 49 | 1.006160% |
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 | 6992 | 4872 | 2 | 2 | 0.03% | 0.04% |  |
B | 6991 | 4871 | 8 | 8 | 0.11% | 0.16% |  |
C | 6991 | 4871 | 21 | 21 | 0.30% | 0.43% |  |
D | 6991 | 4871 | 35 | 35 | 0.50% | 0.72% |  |
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 | 10 | 83 | 537159 | 4823.59 | 549 | 538 | 111.2 |
A | 2 | 79 | 12067 | 103.63 | 549 | 538 | 111.2 |
A | 13 | 248 | 11201 | 95.85 | 549 | 538 | 111.2 |
B | 0 | 245 | 113984 | 1085.52 | 542 | 526 | 104.5 |
B | 5 | 172 | 53701 | 508.76 | 542 | 526 | 104.5 |
B | 7 | 202 | 52037 | 492.84 | 542 | 526 | 104.5 |
C | 15 | 214 | 220095 | 1753.07 | 542 | 545 | 125.2 |
C | 5 | 250 | 110920 | 881.33 | 542 | 545 | 125.2 |
C | 3 | 233 | 56330 | 445.43 | 542 | 545 | 125.2 |
D | 1 | 52 | 405942 | 3078.84 | 544 | 529 | 131.7 |
D | 2 | 249 | 227289 | 1722.09 | 544 | 529 | 131.7 |
D | 9 | 19 | 104110 | 786.63 | 544 | 529 | 131.7 |
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 |  |