ASTROSAT CZTI

Data Quality Report

Orbit 46265

Creation date: 2024-06-27T23:21:00.598981
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_071T10_9000006192_46265cztM0_level2.fits modeM0/AS1A13_071T10_9000006192_46265cztM0_level2_quad_clean.evt
Size (bytes)824,451,840173,736,000
Size786.3 MB 165.7 MB
Events in quadrant A9,196,3511,145,499
Events in quadrant B7,739,1331,171,591
Events in quadrant C4,884,4011,164,867
Events in quadrant D7,834,1311,005,091

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02240
B02240
C02240
D02240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0346282
B0305962
C0231212
D0315482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111741110.993377%
B111743653.266512%
C11175480.429530%
D111757696.881432%

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 11559 11176 0 0 0.00% 0.00%
B 11559 11176 225 225 1.95% 2.01%
C 11560 11177 26 26 0.22% 0.23%
D 11560 11177 711 711 6.15% 6.36%

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 4573466 18415.35 1190 1162 248.3
A 13 254 18687 70.58 1190 1162 248.3
A 3 137 14473 53.61 1190 1162 248.3
B 3 112 2898977 12534.68 1183 1144 231.2
B 5 172 82245 350.8 1183 1144 231.2
B 12 111 29810 123.99 1183 1144 231.2
C 12 2 213901 766.64 1185 1188 277.5
C 14 254 29444 101.84 1185 1188 277.5
C 13 61 7942 24.34 1185 1188 277.5
D 2 249 1442320 5050.9 1144 1109 285.3
D 1 52 612233 2141.76 1144 1109 285.3
D 5 171 506471 1771.1 1144 1109 285.3

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