ASTROSAT CZTI

Data Quality Report

Orbit 38289

Creation date: 2024-06-27T21:50:47.923679
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/AS1A07_145T01_9000005370_38289cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38289cztM0_level2_quad_clean.evt
Size (bytes)428,941,44087,347,520
Size409.1 MB 83.3 MB
Events in quadrant A2,819,537600,343
Events in quadrant B2,839,741614,146
Events in quadrant C2,865,535595,961
Events in quadrant D6,979,100496,229

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113073
B0114652
C0113472
D0241202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4823160.331744%
B48231182.446610%
C4823491.015965%
D482366613.808833%

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 6976 4824 7 7 0.10% 0.15%
B 6976 4824 82 82 1.18% 1.70%
C 6976 4824 36 36 0.52% 0.75%
D 6976 4824 637 637 9.13% 13.20%

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 10 83 362007 3202.14 560 551 112.9
A 12 16 199383 1761.45 560 551 112.9
A 12 194 33033 287.76 560 551 112.9
B 5 184 224903 2078.74 564 549 107.9
B 5 172 170501 1574.68 564 549 107.9
B 0 229 87498 805.62 564 549 107.9
C 15 214 205409 1566.92 559 563 130.7
C 9 236 200257 1527.51 559 563 130.7
C 14 254 143556 1093.79 559 563 130.7
D 2 16 1863055 14323.75 531 517 130.0
D 10 203 1166969 8970.54 531 517 130.0
D 1 47 938850 7216.2 531 517 130.0

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