ASTROSAT CZTI

Data Quality Report

Orbit 47302

Creation date: 2024-06-28T19:26:35.687018
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/AS1A13_093T12_9000006314_47302cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47302cztM0_level2_quad_clean.evt
Size (bytes)187,675,20037,284,480
Size179.0 MB 35.6 MB
Events in quadrant A2,759,621237,679
Events in quadrant B1,187,119262,484
Events in quadrant C1,147,141255,926
Events in quadrant D1,676,575211,070

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098041
B050541
C050651
D067161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22472229.879840%
B2247683.026257%
C2247723.204272%
D224730913.751669%

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 3402 2248 50 50 1.47% 2.22%
B 3402 2248 13 13 0.38% 0.58%
C 3402 2248 35 35 1.03% 1.56%
D 3402 2248 154 154 4.53% 6.85%

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 83 1389418 26273.02 250 244 52.9
A 9 191 261364 4938.48 250 244 52.9
A 15 235 122803 2317.92 250 244 52.9
B 0 200 85517 1634.63 260 252 52.2
B 5 171 40093 763.8 260 252 52.2
B 0 198 9185 171.26 260 252 52.2
C 14 254 117859 1926.33 258 259 61.0
C 3 233 12497 200.46 258 259 61.0
C 1 3 5817 91.04 258 259 61.0
D 12 2 667995 10685.64 243 233 62.5
D 11 192 31034 492.88 243 233 62.5
D 13 23 15565 245.35 243 233 62.5

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