ASTROSAT CZTI

Data Quality Report

Orbit 21712

Creation date: 2024-06-27T18:31:28.137275
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_039T03_9000003214_21712cztM0_level2.evt modeM0/AS1A07_039T03_9000003214_21712cztM0_level2_quad_clean.evt
Size (bytes)61,505,28018,737,280
Size58.7 MB 17.9 MB
Events in quadrant A411,647125,497
Events in quadrant B471,660133,507
Events in quadrant C495,263127,761
Events in quadrant D431,168121,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016571
B019021
C019801
D017271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73470.953678%
B734131.771117%
C734152.043597%
D73420.272480%

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 734 734 0 0 0.00% 0.00%
B 734 734 4 4 0.54% 0.54%
C 734 734 0 0 0.00% 0.00%
D 734 734 1 1 0.14% 0.14%

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 10 253 5640 241.01 104 102 23.0
A 15 236 1442 58.32 104 102 23.0
A 13 254 1251 50.0 104 102 23.0
B 3 64 28542 1322.12 108 105 21.5
B 0 230 8206 376.64 108 105 21.5
B 0 245 6891 315.5 108 105 21.5
C 8 208 75672 2939.91 103 103 25.7
C 14 238 16680 644.9 103 103 25.7
C 0 10 678 22.37 103 103 25.7
D 1 52 16080 621.17 101 98 25.7
D 12 235 11897 458.59 101 98 25.7
D 14 35 9958 383.23 101 98 25.7

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