ASTROSAT CZTI

Data Quality Report

Orbit 00760

Creation date: 2024-06-27T14:02:34.809366
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/AS1P01_010T01_9000000108_00760cztM0_level2.evt modeM0/AS1P01_010T01_9000000108_00760cztM0_level2_quad_clean.evt
Size (bytes)328,492,80026,899,200
Size313.3 MB 25.7 MB
Events in quadrant A2,459,167168,149
Events in quadrant B2,572,683171,975
Events in quadrant C2,169,865173,649
Events in quadrant D2,620,331163,720

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086330
B089620
C077620
D091280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1870371.978610%
B1870100.534759%
C187000.000000%
D1870754.010695%

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 1870 1870 109 109 5.83% 5.83%
B 1870 1870 99 99 5.29% 5.29%
C 1870 1870 13 13 0.70% 0.70%
D 1870 1870 254 254 13.58% 13.58%

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 15 233 212840 1507.97 575 576 140.8
A 0 117 29438 205.04 575 576 140.8
A 8 65 5818 37.24 575 576 140.8
B 7 221 317560 2231.19 582 583 142.1
B 8 38 18884 128.82 582 583 142.1
B 0 220 6643 42.66 582 583 142.1
C 15 241 17490 109.17 543 562 155.1
C 3 111 11557 70.9 543 562 155.1
C 3 79 10032 61.07 543 562 155.1
D 12 33 487859 2915.26 541 556 167.2
D 1 4 31350 184.22 541 556 167.2
D 13 25 30688 180.26 541 556 167.2

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