ASTROSAT CZTI

Data Quality Report

Orbit 45488

Creation date: 2024-06-27T23:12:48.006573
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_054T01_9000006098_45488cztM0_level2.fits modeM0/AS1A13_054T01_9000006098_45488cztM0_level2_quad_clean.evt
Size (bytes)497,090,880108,538,560
Size474.1 MB 103.5 MB
Events in quadrant A5,397,707730,796
Events in quadrant B3,294,860765,022
Events in quadrant C3,109,597736,036
Events in quadrant D6,124,176627,438

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204701
B0137021
C0132302
D0224931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61181772.893102%
B61181302.124877%
C6117570.931829%
D61185278.613926%

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 7348 6119 17 17 0.23% 0.28%
B 7348 6119 44 44 0.60% 0.72%
C 7347 6118 26 26 0.35% 0.42%
D 7348 6119 425 425 5.78% 6.95%

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 2524854 16636.37 738 724 151.7
A 0 243 12370 76.76 738 724 151.7
A 3 137 8144 48.9 738 724 151.7
B 15 201 263835 1806.97 742 723 145.6
B 5 172 35511 238.91 742 723 145.6
B 12 111 17599 115.9 742 723 145.6
C 14 254 194636 1129.02 733 738 171.7
C 2 14 33473 190.61 733 738 171.7
C 3 233 16948 94.39 733 738 171.7
D 11 241 1572283 8801.92 708 690 178.6
D 1 52 705142 3945.38 708 690 178.6
D 2 249 457845 2560.36 708 690 178.6

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