ASTROSAT CZTI

Data Quality Report

Orbit 29473

Creation date: 2024-06-27T20:04:27.500801
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/AS1A10_102T09_9000004242_29473cztM0_level2.evt modeM0/AS1A10_102T09_9000004242_29473cztM0_level2_quad_clean.evt
Size (bytes)1,199,315,520130,633,920
Size1.1 GB 124.6 MB
Events in quadrant A5,774,998858,806
Events in quadrant B6,024,596877,383
Events in quadrant C7,201,810808,634
Events in quadrant D16,587,288655,672

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231372
B0240192
C0287942
D0569772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108981731.587447%
B108992352.156161%
C108994273.917791%
D10899250322.965410%

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 13258 10900 0 0 0.00% 0.00%
B 13259 10901 11 11 0.08% 0.10%
C 13259 10901 17 17 0.13% 0.16%
D 13259 10900 2281 2281 17.20% 20.93%

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 13 254 20647 64.67 1497 1473 296.5
A 3 137 13812 41.62 1497 1473 296.5
A 0 226 12821 38.27 1497 1473 296.5
B 15 33 74902 265.0 1487 1457 277.1
B 0 156 40599 141.23 1487 1457 277.1
B 5 255 37566 130.29 1487 1457 277.1
C 3 233 1485518 4569.97 1402 1417 324.8
C 14 238 227291 695.53 1402 1417 324.8
C 2 114 26275 76.54 1402 1417 324.8
D 8 195 8309831 27150.92 1292 1263 306.0
D 7 80 1691012 5521.8 1292 1263 306.0
D 1 52 1031372 3366.21 1292 1263 306.0

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