Observation information
- date-obs: 2026-04-30
- time-obs: 17:24:13.485900000
- date-end: 2026-04-30
- time-end: 19:26:51.457100000
- obs_id: A14_049T03_9000006570
- exposure: 5308.21353048
- sourceid: NGC 1796
- observer: amrutha
- ra_pnt: 75.67679
- dec_pnt: -61.13996
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_049T03_9000006570_57292cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57292cztM0_level2_quad_clean.evt
|
| Size (bytes) | 472,276,800 | 89,827,200 |
| Size | 450.4 MB
| 85.7 MB
|
| Events in quadrant A | 3,096,964 | 610,753 |
| Events in quadrant B | 3,060,590 | 652,625 |
| Events in quadrant C | 4,235,369 | 557,479 |
| Events in quadrant D | 6,617,100 | 475,064 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13350 | 129 |
| B | 0 | 13516 | 148 |
| C | 0 | 16952 | 210 |
| D | 0 | 24110 | 289 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 2 |
| C | 0 | 124 | 2 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6084 | 28 | 0.460224% |
| B | 6077 | 76 | 1.250617% |
| C | 6074 | 256 | 4.214686% |
| D | 6057 | 967 | 15.964999% |
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 | 7358 | 6129 | 6 | 6 | 0.08% | 0.10% |  |
| B | 7358 | 6131 | 38 | 38 | 0.52% | 0.62% |  |
| C | 7359 | 6126 | 221 | 221 | 3.00% | 3.61% |  |
| D | 7359 | 6133 | 865 | 865 | 11.75% | 14.10% |  |
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 | 8 | 4 | 385562 | 2349.3 | 662 | 645 | 163.8 |
| A | 3 | 14 | 96444 | 584.7 | 662 | 645 | 163.8 |
| A | 4 | 13 | 17687 | 104.01 | 662 | 645 | 163.8 |
| B | 5 | 185 | 152380 | 1078.41 | 655 | 631 | 140.7 |
| B | 0 | 63 | 69634 | 490.37 | 655 | 631 | 140.7 |
| B | 7 | 252 | 66767 | 470.0 | 655 | 631 | 140.7 |
| C | 15 | 224 | 1369775 | 7973.92 | 624 | 619 | 171.7 |
| C | 6 | 223 | 105724 | 612.13 | 624 | 619 | 171.7 |
| C | 14 | 254 | 73109 | 422.18 | 624 | 619 | 171.7 |
| D | 3 | 224 | 3754378 | 22193.33 | 593 | 565 | 169.1 |
| D | 3 | 12 | 249985 | 1474.62 | 593 | 565 | 169.1 |
| D | 8 | 240 | 74994 | 440.04 | 593 | 565 | 169.1 |
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 |  |