ASTROSAT CZTI

Data Quality Report

Orbit 17595

Creation date: 2024-06-27T17:38:24.862134
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/AS1A05_056T01_9000002604_17595cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17595cztM0_level2_quad_clean.evt
Size (bytes)802,437,120137,151,360
Size765.3 MB 130.8 MB
Events in quadrant A6,369,007856,814
Events in quadrant B5,250,178869,434
Events in quadrant C6,518,505820,926
Events in quadrant D5,398,821824,071

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263062
B0230124
C0265502
D0240055

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113081941.715600%
B11306430.380329%
C11306930.822572%
D11306320.283036%

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 12903 11310 140 140 1.09% 1.24%
B 12902 11309 2 2 0.02% 0.02%
C 12902 11309 0 0 0.00% 0.00%
D 12901 11308 22 22 0.17% 0.19%

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 14 237 1187020 4444.42 1327 1301 266.8
A 15 174 69520 255.7 1327 1301 266.8
A 0 13 13095 44.21 1327 1301 266.8
B 12 111 31795 119.27 1334 1300 255.7
B 11 111 27728 103.36 1334 1300 255.7
B 14 111 24288 89.91 1334 1300 255.7
C 3 233 1219936 4043.65 1281 1290 301.4
C 14 238 196899 649.06 1281 1290 301.4
C 5 218 96838 317.04 1281 1290 301.4
D 13 189 458826 1438.06 1298 1261 318.2
D 2 234 44327 135.35 1298 1261 318.2
D 2 152 13578 38.71 1298 1261 318.2

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