ASTROSAT CZTI

Data Quality Report

Orbit 20230511_A12_089T10_9000005614_level2

Creation date: 2023-05-12T11:03:20.705937
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/AS1A12_089T10_9000005614cztM0_level2.fits modeM0/AS1A12_089T10_9000005614cztM0_level2_quad_clean.evt
Size (bytes)40,720,32043,712,640
Size38.8 MB 41.7 MB
Events in quadrant A247,048271,377
Events in quadrant B234,836267,901
Events in quadrant C227,354231,358
Events in quadrant D211,788240,106

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094970
B0100880
C0140550
D096370

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A444290.202611%
B4442681.530842%
C444249211.076092%
D4442521.170644%

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 6565 4442 0 0 0.00% 0.00%
B 6565 4442 0 0 0.00% 0.00%
C 6564 4436 0 0 0.00% 0.00%
D 6565 4435 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 0 29 211 8.33 64 60 18.1
A 9 19 205 8.0 64 60 18.1
A 7 110 193 7.34 64 60 18.1
B 2 9 202 9.9 62 59 14.5
B 3 17 175 8.03 62 59 14.5
B 5 128 168 7.54 62 59 14.5
C 1 81 184 7.34 60 56 17.4
C 1 80 170 6.54 60 56 17.4
C 3 158 166 6.31 60 56 17.4
D 4 160 176 6.78 60 55 17.9
D 7 3 167 6.27 60 55 17.9
D 13 238 159 5.83 60 55 17.9

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