ASTROSAT CZTI

Data Quality Report

Orbit 03247

Creation date: 2024-06-27T14:26:42.338561
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/AS1G05_104T01_9000000440_03247cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03247cztM0_level2_quad_clean.evt
Size (bytes)196,738,56028,451,520
Size187.6 MB 27.1 MB
Events in quadrant A1,448,623166,510
Events in quadrant B1,569,961166,715
Events in quadrant C1,293,793172,202
Events in quadrant D1,459,871161,862

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062091
B063940
C057180
D062370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27051083.992606%
B2705321.182994%
C2705260.961183%
D2705411.515712%

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 2705 2705 77 77 2.85% 2.85%
B 2705 2705 0 0 0.00% 0.00%
C 2705 2705 2 2 0.07% 0.07%
D 2705 2705 31 31 1.15% 1.15%

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 50 232417 3529.17 309 303 65.8
A 0 118 15872 236.72 309 303 65.8
A 0 226 4726 67.25 309 303 65.8
B 15 204 292253 4651.08 314 306 62.8
B 2 249 40853 645.96 314 306 62.8
B 5 200 7549 115.39 314 306 62.8
C 14 48 44054 601.99 305 306 72.7
C 14 223 25416 345.53 305 306 72.7
C 15 208 15076 203.24 305 306 72.7
D 13 114 244517 3223.18 305 295 75.8
D 10 34 16307 211.32 305 295 75.8
D 13 223 14197 183.48 305 295 75.8

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