ASTROSAT CZTI

Data Quality Report

Orbit 07025

Creation date: 2024-06-27T15:14:37.482059
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_026T01_9000000962_07025cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07025cztM0_level2_quad_clean.evt
Size (bytes)236,937,60036,538,560
Size226.0 MB 34.8 MB
Events in quadrant A1,068,245240,050
Events in quadrant B1,116,206240,017
Events in quadrant C1,044,581238,090
Events in quadrant D3,768,816201,937

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051890
B052510
C051810
D0129790

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259030.115830%
B259050.193050%
C259000.000000%
D259068426.409266%

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 2590 2590 0 0 0.00% 0.00%
B 2590 2590 2 2 0.08% 0.08%
C 2590 2590 0 0 0.00% 0.00%
D 2590 2590 692 692 26.72% 26.72%

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 0 226 2691 41.41 276 270 58.5
A 8 15 2643 40.59 276 270 58.5
A 12 194 2523 38.54 276 270 58.5
B 0 214 20471 368.69 277 271 54.8
B 0 228 6772 118.65 277 271 54.8
B 0 199 5411 93.81 277 271 54.8
C 8 128 5032 75.76 263 265 62.9
C 1 16 3308 48.36 263 265 62.9
C 8 112 2843 40.97 263 265 62.9
D 2 216 2687357 44594.46 238 230 60.3
D 8 195 102187 1692.04 238 230 60.3
D 2 136 58529 967.51 238 230 60.3

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