ASTROSAT CZTI

Data Quality Report

Orbit 10546

Creation date: 2024-06-27T16:00:34.738218
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/AS1A03_107T01_9000001530_10546cztM0_level2.evt modeM0/AS1A03_107T01_9000001530_10546cztM0_level2_quad_clean.evt
Size (bytes)60,963,84017,614,080
Size58.1 MB 16.8 MB
Events in quadrant A541,015147,633
Events in quadrant B254,89165,427
Events in quadrant C536,495149,872
Events in quadrant D447,24097,684

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05630
B05632
C05628
D05528

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167
B0189
C0189
D0167

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060213750
B01211011105
C061283784
D075105801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113620.176056%
B50310.198807%
C117310.085251%
D80410.124378%

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 1489 1363 0 0 0.00% 0.00%
B 1489 681 0 0 0.00% 0.00%
C 1489 1377 0 0 0.00% 0.00%
D 1488 1031 0 0 0.00% 0.00%

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 1 162 3287 104.39 137 135 30.2
A 13 251 2161 67.1 137 135 30.2
A 15 239 1748 53.42 137 135 30.2
B 11 51 8612 632.93 59 58 13.5
B 4 239 6049 443.29 59 58 13.5
B 0 229 2679 193.93 59 58 13.5
C 4 175 11502 346.96 134 134 32.8
C 4 174 1086 29.06 134 134 32.8
C 13 61 1069 28.54 134 134 32.8
D 8 195 44512 1818.53 92 89 24.4
D 2 16 39081 1596.2 92 89 24.4
D 1 52 11602 471.3 92 89 24.4

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