ASTROSAT CZTI

Data Quality Report

Orbit 06074

Creation date: 2024-06-27T15:02:36.869768
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/AS1G06_168T01_9000000786_06074cztM0_level2.evt modeM0/AS1G06_168T01_9000000786_06074cztM0_level2_quad_clean.evt
Size (bytes)146,675,52023,454,720
Size139.9 MB 22.4 MB
Events in quadrant A1,081,089140,848
Events in quadrant B1,103,141143,061
Events in quadrant C1,046,066141,065
Events in quadrant D1,069,029135,101

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0462
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04576139
B04674196
C04481158
D04612150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2063602.908386%
B2042733.574927%
C2051452.194052%
D2059562.719767%

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 3119 2125 0 0 0.00% 0.00%
B 3119 2121 1 1 0.03% 0.05%
C 3119 2124 0 0 0.00% 0.00%
D 3119 2119 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 13 210 10140 168.01 275 269 58.8
A 14 111 5264 85.02 275 269 58.8
A 8 15 4047 64.3 275 269 58.8
B 3 64 16988 305.45 274 268 54.7
B 0 219 9931 176.53 274 268 54.7
B 4 81 6830 119.88 274 268 54.7
C 14 206 2366 32.72 267 268 64.1
C 13 61 2119 28.87 267 268 64.1
C 8 222 949 10.62 267 268 64.1
D 12 221 28441 412.09 268 259 68.4
D 5 239 9260 131.62 268 259 68.4
D 8 195 7282 102.69 268 259 68.4

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