ASTROSAT CZTI

Data Quality Report

Orbit 44984

Creation date: 2024-06-27T23:08:43.007279
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/AS1A13_044T02_9000006038_44984cztM0_level2.fits modeM0/AS1A13_044T02_9000006038_44984cztM0_level2_quad_clean.evt
Size (bytes)262,673,28040,161,600
Size250.5 MB 38.3 MB
Events in quadrant A2,311,577282,517
Events in quadrant B1,647,012299,947
Events in quadrant C1,289,231287,273
Events in quadrant D4,273,764162,178

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085931
B065961
C055421
D0144852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25741686.526807%
B2574983.807304%
C2574301.165501%
D2573116145.122425%

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 3334 2575 1 1 0.03% 0.04%
B 3334 2575 12 12 0.36% 0.47%
C 3334 2575 1 1 0.03% 0.04%
D 3333 2574 1005 1005 30.15% 39.04%

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 1061297 15528.66 320 312 68.3
A 0 243 6843 95.59 320 312 68.3
A 13 248 3812 51.23 320 312 68.3
B 15 201 65030 993.7 321 311 65.1
B 0 168 56212 858.31 321 311 65.1
B 0 183 43988 670.62 321 311 65.1
C 12 2 22398 288.09 318 319 76.6
C 15 208 5014 61.26 318 319 76.6
C 12 249 4772 58.1 318 319 76.6
D 11 241 914951 12478.74 283 272 73.3
D 12 33 883717 12052.62 283 272 73.3
D 13 187 357325 4871.19 283 272 73.3

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