ASTROSAT CZTI

Data Quality Report

Orbit 29646

Creation date: 2024-06-27T20:06:26.287057
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/AS1C05_019T01_9000004270_29646cztM0_level2.evt modeM0/AS1C05_019T01_9000004270_29646cztM0_level2_quad_clean.evt
Size (bytes)97,637,76028,892,160
Size93.1 MB 27.6 MB
Events in quadrant A635,598193,230
Events in quadrant B664,860201,545
Events in quadrant C677,484194,532
Events in quadrant D883,195183,013

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027851
B027991
C028471
D034941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A136420.146628%
B136420.146628%
C136450.366569%
D1364352.565982%

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 1364 1364 0 0 0.00% 0.00%
B 1364 1364 0 0 0.00% 0.00%
C 1364 1364 0 0 0.00% 0.00%
D 1364 1364 29 29 2.13% 2.13%

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 12 96 4622 129.86 163 160 34.4
A 13 254 2619 71.57 163 160 34.4
A 0 13 1596 41.79 163 160 34.4
B 12 111 3753 108.75 168 164 33.0
B 11 111 3442 99.32 168 164 33.0
B 14 111 3320 95.63 168 164 33.0
C 14 238 26242 645.42 165 166 40.4
C 2 114 3223 75.67 165 166 40.4
C 3 233 2526 58.41 165 166 40.4
D 13 153 74223 1882.66 158 154 39.3
D 8 195 58485 1482.64 158 154 39.3
D 13 104 56718 1437.73 158 154 39.3

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