ASTROSAT CZTI

Data Quality Report

Orbit 44094

Creation date: 2024-06-27T22:59:18.914123
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_038T01_9000005944_44094cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44094cztM0_level2_quad_clean.evt
Size (bytes)612,725,76086,624,640
Size584.3 MB 82.6 MB
Events in quadrant A11,475,966294,431
Events in quadrant B3,915,584664,430
Events in quadrant C2,760,252656,205
Events in quadrant D4,064,109589,582

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382146
B0158371
C0124101
D0162331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5982365761.133400%
B59823195.332665%
C5983280.467993%
D59832323.877653%

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 7061 5981 2733 2733 38.71% 45.69%
B 7062 5983 168 168 2.38% 2.81%
C 7063 5984 11 11 0.16% 0.18%
D 7063 5984 171 171 2.42% 2.86%

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 15 223 8283524 87891.13 451 442 94.2
A 10 83 749679 7950.09 451 442 94.2
A 14 238 467350 4954.32 451 442 94.2
B 0 200 844026 6409.47 671 650 131.6
B 4 171 272494 2065.96 671 650 131.6
B 0 245 31363 233.41 671 650 131.6
C 14 254 86511 536.65 675 678 159.9
C 3 233 27952 170.52 675 678 159.9
C 14 96 17079 102.54 675 678 159.9
D 1 52 626654 3756.62 661 641 166.6
D 13 249 296297 1774.19 661 641 166.6
D 13 171 151700 906.48 661 641 166.6

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