ASTROSAT CZTI

Data Quality Report

Orbit 21732

Creation date: 2024-06-27T18:32:07.788955
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/AS1A07_027T16_9000003222_21732cztM0_level2.evt modeM0/AS1A07_027T16_9000003222_21732cztM0_level2_quad_clean.evt
Size (bytes)602,360,64090,708,480
Size574.5 MB 86.5 MB
Events in quadrant A5,059,358526,957
Events in quadrant B4,295,247564,416
Events in quadrant C3,970,798550,106
Events in quadrant D4,364,649539,317

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204732
B0179992
C0170952
D0185132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A813982010.074948%
B81393524.324856%
C81393334.091412%
D81393264.005406%

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 8669 8141 472 472 5.44% 5.80%
B 8669 8141 13 13 0.15% 0.16%
C 8669 8141 0 0 0.00% 0.00%
D 8669 8141 56 56 0.65% 0.69%

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 15 236 1215349 6071.13 983 959 200.0
A 5 16 55431 272.32 983 959 200.0
A 13 254 11166 51.03 983 959 200.0
B 0 197 135085 680.81 1002 974 197.0
B 3 64 127426 641.93 1002 974 197.0
B 0 230 60992 304.68 1002 974 197.0
C 14 238 149042 637.34 980 985 232.3
C 13 61 6865 25.31 980 985 232.3
C 10 22 2973 8.56 980 985 232.3
D 12 235 240078 985.7 992 961 242.6
D 7 238 127595 522.02 992 961 242.6
D 14 35 116684 477.04 992 961 242.6

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