ASTROSAT CZTI

Data Quality Report

Orbit 30541

Creation date: 2024-06-27T20:16:29.178007
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/AS1A10_053T13_9000004394_30541cztM0_level2.evt modeM0/AS1A10_053T13_9000004394_30541cztM0_level2_quad_clean.evt
Size (bytes)349,914,24048,363,840
Size333.7 MB 46.1 MB
Events in quadrant A2,101,784305,786
Events in quadrant B3,262,283301,860
Events in quadrant C2,722,284281,485
Events in quadrant D2,232,460286,557

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084750
B0124380
C0105020
D089030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A409040.097800%
B4091210.513322%
C40911814.424346%
D409160.146663%

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 4090 4090 0 0 0.00% 0.00%
B 4091 4091 6 6 0.15% 0.15%
C 4091 4091 97 97 2.37% 2.37%
D 4091 4091 6 6 0.15% 0.15%

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 13 254 7433 62.92 544 535 109.6
A 3 137 5171 42.28 544 535 109.6
A 0 226 4572 36.82 544 535 109.6
B 6 159 1125788 11251.49 528 516 100.0
B 4 171 23013 224.95 528 516 100.0
B 6 36 16661 161.43 528 516 100.0
C 10 22 612000 5254.11 498 501 116.4
C 14 238 95778 818.64 498 501 116.4
C 3 233 43528 369.7 498 501 116.4
D 8 195 161714 1290.32 523 511 124.9
D 2 250 50204 397.76 523 511 124.9
D 2 234 19934 155.47 523 511 124.9

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