Observation information
- date-obs: 2026-05-03
- time-obs: 07:49:15.833400000
- date-end: 2026-05-03
- time-end: 09:56:36.809900000
- obs_id: A14_049T03_9000006570
- exposure: 5530.20014572
- 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_57330cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57330cztM0_level2_quad_clean.evt
|
| Size (bytes) | 590,166,720 | 94,982,400 |
| Size | 562.8 MB
| 90.6 MB
|
| Events in quadrant A | 3,316,407 | 652,021 |
| Events in quadrant B | 3,203,396 | 697,762 |
| Events in quadrant C | 7,921,597 | 507,317 |
| Events in quadrant D | 6,870,504 | 539,261 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14812 | 1 |
| B | 0 | 14457 | 1 |
| C | 0 | 28325 | 1 |
| D | 0 | 25174 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6881 | 77 | 1.119023% |
| B | 6882 | 98 | 1.424005% |
| C | 6882 | 1608 | 23.365301% |
| D | 6882 | 869 | 12.627143% |
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 | 7641 | 6882 | 10 | 10 | 0.13% | 0.15% |  |
| B | 7642 | 6883 | 17 | 17 | 0.22% | 0.25% |  |
| C | 7642 | 6882 | 1187 | 1187 | 15.53% | 17.25% |  |
| D | 7642 | 6883 | 673 | 673 | 8.81% | 9.78% |  |
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 | 0 | 12 | 341262 | 1850.49 | 753 | 736 | 184.0 |
| A | 8 | 4 | 13005 | 66.67 | 753 | 736 | 184.0 |
| A | 6 | 255 | 12968 | 66.47 | 753 | 736 | 184.0 |
| B | 7 | 252 | 89238 | 550.95 | 742 | 714 | 160.7 |
| B | 4 | 201 | 38671 | 236.23 | 742 | 714 | 160.7 |
| B | 5 | 185 | 23683 | 142.95 | 742 | 714 | 160.7 |
| C | 15 | 224 | 5087304 | 27987.81 | 661 | 656 | 181.7 |
| C | 9 | 237 | 119714 | 655.08 | 661 | 656 | 181.7 |
| C | 14 | 254 | 83633 | 456.56 | 661 | 656 | 181.7 |
| D | 3 | 224 | 3453848 | 17502.58 | 702 | 670 | 197.3 |
| D | 2 | 249 | 233578 | 1180.5 | 702 | 670 | 197.3 |
| D | 8 | 240 | 184065 | 929.55 | 702 | 670 | 197.3 |
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 |  |