Observation information
- date-obs: 2016-03-19
- time-obs: 10:49:10.796900000
- date-end: 2016-03-21
- time-end: 16:18:56.703400000
- obs_id: T01_071T01_9000000382
- exposure: 98400.4869916
- sourceid: NGC 1851
- observer: annapurni
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_071T01_9000000382cztM0_level2.fits
| modeM0/AS1T01_071T01_9000000382cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,516,406,400 | 1,595,718,720 |
| Size | 1.4 GB
| 1.5 GB
|
| Events in quadrant A | 9,011,584 | 9,457,537 |
| Events in quadrant B | 8,788,574 | 9,578,676 |
| Events in quadrant C | 8,898,826 | 9,207,728 |
| Events in quadrant D | 7,521,914 | 8,384,828 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 219 | 0 |
| B | 0 | 219 | 0 |
| C | 0 | 219 | 0 |
| D | 0 | 219 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 353142 | 0 |
| B | 0 | 356971 | 0 |
| C | 0 | 360596 | 0 |
| D | 0 | 397888 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3472 | 0 |
| B | 0 | 3472 | 0 |
| C | 0 | 3472 | 0 |
| D | 0 | 3472 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 170806 | 2420 | 1.416812% |
| B | 170806 | 2511 | 1.470089% |
| C | 170806 | 2397 | 1.403346% |
| D | 170806 | 3534 | 2.069014% |
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 | 192587 | 170809 | 0 | 0 | 0.00% | 0.00% |  |
| B | 192587 | 170807 | 0 | 0 | 0.00% | 0.00% |  |
| C | 192587 | 170802 | 0 | 0 | 0.00% | 0.00% |  |
| D | 192587 | 170800 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 8484 | 10.34 | 2340 | 2171 | 610.3 |
| A | 7 | 110 | 7903 | 9.39 | 2340 | 2171 | 610.3 |
| A | 14 | 79 | 6680 | 7.39 | 2340 | 2171 | 610.3 |
| B | 2 | 9 | 7861 | 12.44 | 2321 | 2198 | 455.4 |
| B | 12 | 226 | 6674 | 9.83 | 2321 | 2198 | 455.4 |
| B | 14 | 254 | 6330 | 9.07 | 2321 | 2198 | 455.4 |
| C | 2 | 127 | 6067 | 6.16 | 2355 | 2162 | 633.8 |
| C | 9 | 188 | 5923 | 5.93 | 2355 | 2162 | 633.8 |
| C | 9 | 242 | 5906 | 5.91 | 2355 | 2162 | 633.8 |
| D | 3 | 14 | 5665 | 6.21 | 2152 | 1943 | 599.0 |
| D | 11 | 82 | 5590 | 6.09 | 2152 | 1943 | 599.0 |
| D | 6 | 231 | 5561 | 6.04 | 2152 | 1943 | 599.0 |
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 |  |