ASTROSAT CZTI

Data Quality Report

Orbit 04588

Creation date: 2024-06-27T14:44:07.915242
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/AS1G05_233T10_9000000570_04588cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04588cztM0_level2_quad_clean.evt
Size (bytes)186,094,08024,658,560
Size177.5 MB 23.5 MB
Events in quadrant A1,258,535137,281
Events in quadrant B1,420,503140,925
Events in quadrant C1,381,224137,272
Events in quadrant D1,383,305130,673

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056881
B060241
C057951
D061311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A279540.143113%
B279550.178891%
C279540.143113%
D2795180.644007%

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 2795 2795 0 0 0.00% 0.00%
B 2795 2795 2 2 0.07% 0.07%
C 2795 2795 1 1 0.04% 0.04%
D 2795 2795 7 7 0.25% 0.25%

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 0 226 3413 45.97 326 320 67.3
A 12 194 3210 42.95 326 320 67.3
A 13 254 1135 12.11 326 320 67.3
B 10 16 88565 1388.34 333 327 63.6
B 15 204 19686 304.6 333 327 63.6
B 12 18 8104 122.36 333 327 63.6
C 14 48 118306 1579.38 318 319 74.7
C 9 54 8287 106.66 318 319 74.7
C 9 247 4593 57.21 318 319 74.7
D 12 233 65937 856.48 310 301 76.6
D 12 110 58561 760.23 310 301 76.6
D 13 235 45197 585.85 310 301 76.6

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