ASTROSAT CZTI

Data Quality Report

Orbit 42674

Creation date: 2024-06-27T22:42:53.709244
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/AS1A05_013T01_9000005822_42674cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42674cztM0_level2_quad_clean.evt
Size (bytes)360,889,92087,701,760
Size344.2 MB 83.6 MB
Events in quadrant A2,912,618605,890
Events in quadrant B2,807,093610,756
Events in quadrant C2,812,124576,415
Events in quadrant D4,406,764484,255

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118312
B0118722
C0117742
D0170512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5396170.315048%
B5396681.260193%
C5396831.538176%
D539667612.527798%

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 7159 5397 10 10 0.14% 0.19%
B 7159 5397 47 47 0.66% 0.87%
C 7159 5397 70 70 0.98% 1.30%
D 7159 5397 613 613 8.56% 11.36%

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 566432 4632.62 592 582 122.1
A 15 237 41765 337.17 592 582 122.1
A 13 6 10389 80.29 592 582 122.1
B 10 246 211453 1854.63 587 572 113.7
B 0 245 120642 1055.98 587 572 113.7
B 0 229 102716 898.32 587 572 113.7
C 14 254 277867 2085.03 570 572 133.0
C 15 214 223699 1677.73 570 572 133.0
C 3 233 56291 418.96 570 572 133.0
D 2 249 1795585 13503.95 541 525 132.9
D 12 233 388903 2921.71 541 525 132.9
D 1 47 43534 323.55 541 525 132.9

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