ASTROSAT CZTI

Data Quality Report

Orbit 06753

Creation date: 2024-06-27T15:11:15.990275
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_168T10_9000000932_06753cztM0_level2.evt modeM0/AS1G06_168T10_9000000932_06753cztM0_level2_quad_clean.evt
Size (bytes)776,439,360133,309,440
Size740.5 MB 127.1 MB
Events in quadrant A6,147,487804,842
Events in quadrant B5,452,258834,104
Events in quadrant C5,071,261820,855
Events in quadrant D6,065,722783,139

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262562
B0239052
C0233642
D0250212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114744403.834757%
B114741591.385742%
C114741070.932543%
D114741801.568764%

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 12154 11476 218 218 1.79% 1.90%
B 12154 11476 3 3 0.02% 0.03%
C 12154 11476 0 0 0.00% 0.00%
D 12154 11476 64 64 0.53% 0.56%

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 4 2 682769 2538.61 1312 1282 268.4
A 14 111 165804 612.86 1312 1282 268.4
A 13 248 121390 447.42 1312 1282 268.4
B 4 81 156856 596.81 1336 1302 260.6
B 0 214 82612 311.96 1336 1302 260.6
B 5 143 32826 120.95 1336 1302 260.6
C 9 247 24451 76.44 1291 1293 303.0
C 13 61 10077 28.99 1291 1293 303.0
C 12 4 7099 19.16 1291 1293 303.0
D 8 195 693131 2178.66 1289 1247 317.6
D 2 33 243428 762.6 1289 1247 317.6
D 2 63 108202 336.79 1289 1247 317.6

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