ASTROSAT CZTI

Data Quality Report

Orbit 26058

Creation date: 2024-06-27T19:24:21.269721
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/AS1A09_085T03_9000003764_26058cztM0_level2.evt modeM0/AS1A09_085T03_9000003764_26058cztM0_level2_quad_clean.evt
Size (bytes)245,485,44027,178,560
Size234.1 MB 25.9 MB
Events in quadrant A1,226,450165,142
Events in quadrant B1,338,938165,089
Events in quadrant C1,187,232156,807
Events in quadrant D3,506,089151,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052510
B055700
C051280
D0121210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A255960.234467%
B2560271.054688%
C2560140.546875%
D256072028.125000%

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 2559 2559 0 0 0.00% 0.00%
B 2560 2560 15 15 0.59% 0.59%
C 2560 2560 0 0 0.00% 0.00%
D 2560 2560 720 720 28.12% 28.12%

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 39439 612.02 307 302 63.9
A 13 254 4224 61.33 307 302 63.9
A 0 226 2771 38.61 307 302 63.9
B 5 172 88832 1545.82 300 294 57.3
B 0 190 36857 638.37 300 294 57.3
B 0 245 28077 485.08 300 294 57.3
C 14 238 46926 679.3 291 292 68.6
C 8 222 2261 28.68 291 292 68.6
C 13 61 2050 25.61 291 292 68.6
D 1 3 2015471 26946.35 283 275 74.8
D 12 233 322585 4309.79 283 275 74.8
D 1 52 70476 938.7 283 275 74.8

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