ASTROSAT CZTI

Data Quality Report

Orbit 00584

Creation date: 2024-06-27T14:00:09.363029
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/AS1P01_118T02_9000000082_00584cztM0_level2.evt modeM0/AS1P01_118T02_9000000082_00584cztM0_level2_quad_clean.evt
Size (bytes)785,165,76065,263,680
Size748.8 MB 62.2 MB
Events in quadrant A5,894,213409,447
Events in quadrant B5,967,392412,168
Events in quadrant C5,286,538409,481
Events in quadrant D6,299,636396,083

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210242
B0212781
C0192501
D0222641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A497470.140732%
B497490.180941%
C497410.020105%
D4974581.166064%

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 7100 4975 117 117 1.65% 2.35%
B 7100 4975 97 97 1.37% 1.95%
C 7100 4975 30 30 0.42% 0.60%
D 7100 4975 273 273 3.85% 5.49%

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 69 41059 119.83 1492 1481 330.3
A 13 160 29164 83.82 1492 1481 330.3
A 14 79 22005 62.14 1492 1481 330.3
B 7 221 260790 752.85 1455 1468 344.5
B 4 250 59569 168.68 1455 1468 344.5
B 4 206 26911 73.87 1455 1468 344.5
C 15 241 42408 110.95 1320 1367 369.9
C 12 127 33436 86.7 1320 1367 369.9
C 1 1 10686 25.19 1320 1367 369.9
D 13 216 501700 1291.82 1323 1361 387.3
D 1 4 208540 534.91 1323 1361 387.3
D 12 237 101797 259.31 1323 1361 387.3

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