ASTROSAT CZTI

Data Quality Report

Orbit 40333

Creation date: 2024-06-27T22:15:02.443986
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/AS1A12_056T02_9000005538_40333cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40333cztM0_level2_quad_clean.evt
Size (bytes)372,672,00086,448,960
Size355.4 MB 82.4 MB
Events in quadrant A2,998,494618,186
Events in quadrant B4,096,350509,343
Events in quadrant C2,656,519598,506
Events in quadrant D3,637,559526,450

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120993
B0156952
C0110302
D0144332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5209380.729507%
B5209104520.061432%
C5209190.364753%
D52092494.780188%

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 7092 5210 35 35 0.49% 0.67%
B 7091 5209 333 333 4.70% 6.39%
C 7092 5210 16 16 0.23% 0.31%
D 7092 5210 260 260 3.67% 4.99%

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 454269 3843.91 579 569 118.0
A 13 248 242130 2046.59 579 569 118.0
A 6 10 30164 250.74 579 569 118.0
B 5 255 1286292 13766.22 481 468 93.4
B 4 171 867112 9278.42 481 468 93.4
B 0 230 27382 288.15 481 468 93.4
C 15 214 242589 1811.47 570 574 133.6
C 14 254 172991 1290.53 570 574 133.6
C 0 10 19270 139.94 570 574 133.6
D 12 227 909130 6643.23 552 537 136.8
D 1 47 177017 1290.34 552 537 136.8
D 12 128 110638 805.01 552 537 136.8

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