ASTROSAT CZTI

Data Quality Report

Orbit 44700

Creation date: 2024-06-27T23:05:37.594664
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_080T01_9000006012_44700cztM0_level2.fits modeM0/AS1A13_080T01_9000006012_44700cztM0_level2_quad_clean.evt
Size (bytes)1,716,505,920297,884,160
Size1.6 GB 284.1 MB
Events in quadrant A16,119,6142,036,016
Events in quadrant B12,859,7612,043,993
Events in quadrant C9,213,5022,029,171
Events in quadrant D23,816,9731,542,567

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04040
B04040
C04040
D04040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0633445
B0517423
C0420103
D0844043

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A198266913.485322%
B1982712356.228880%
C198271960.988551%
D19826367518.536266%

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 21427 19830 159 159 0.74% 0.80%
B 21427 19830 697 697 3.25% 3.51%
C 21427 19830 49 49 0.23% 0.25%
D 21426 19829 3347 3347 15.62% 16.88%

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 6113534 13462.05 2194 2147 454.0
A 15 223 642288 1410.09 2194 2147 454.0
A 13 248 556902 1222.0 2194 2147 454.0
B 4 171 869809 2056.98 2167 2095 421.8
B 0 219 817138 1932.12 2167 2095 421.8
B 5 255 643713 1521.0 2167 2095 421.8
C 14 254 280055 551.54 2146 2154 503.9
C 12 2 122884 239.61 2146 2154 503.9
C 12 250 96876 187.99 2146 2154 503.9
D 11 241 8159088 15816.8 2037 1970 515.7
D 1 52 3367491 6525.8 2037 1970 515.7
D 13 249 1570157 3040.74 2037 1970 515.7

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