ASTROSAT CZTI

Data Quality Report

Orbit 30660

Creation date: 2024-06-27T20:18:16.609897
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/AS1A10_094T78_9000004420_30660cztM0_level2.evt modeM0/AS1A10_094T78_9000004420_30660cztM0_level2_quad_clean.evt
Size (bytes)239,181,12043,436,160
Size228.1 MB 41.4 MB
Events in quadrant A1,246,104304,307
Events in quadrant B1,647,237305,768
Events in quadrant C1,272,665292,807
Events in quadrant D2,936,081262,364

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049971
B064351
C051311
D0101211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20591145.536668%
B20591446.993686%
C20591497.236523%
D205955727.051967%

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 3144 2060 7 7 0.22% 0.34%
B 3144 2060 0 0 0.00% 0.00%
C 3144 2060 2 2 0.06% 0.10%
D 3144 2060 377 377 11.99% 18.30%

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 0 13 115392 1943.63 288 282 59.2
A 12 96 10966 180.4 288 282 59.2
A 8 192 6223 100.31 288 282 59.2
B 6 159 537353 9870.31 277 270 54.4
B 0 190 10037 179.49 277 270 54.4
B 4 171 7109 125.68 277 270 54.4
C 3 233 131605 2033.46 271 270 64.6
C 14 238 44696 687.84 271 270 64.6
C 0 10 36833 566.1 271 270 64.6
D 8 195 1380038 19631.71 263 257 70.3
D 10 253 296145 4209.93 263 257 70.3
D 13 249 183495 2607.14 263 257 70.3

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