ASTROSAT CZTI

Data Quality Report

Orbit 43183

Creation date: 2024-06-27T22:48:59.503416
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/AS1C07_001T10_9000005856_43183cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43183cztM0_level2_quad_clean.evt
Size (bytes)244,022,40067,492,800
Size232.7 MB 64.4 MB
Events in quadrant A2,853,654447,998
Events in quadrant B1,855,535472,931
Events in quadrant C2,074,890437,440
Events in quadrant D1,935,928402,748

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109601
B083631
C087231
D088341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40011624.048988%
B400150.124969%
C400170.174956%
D4001691.724569%

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 4001 4001 133 133 3.32% 3.32%
B 4001 4001 0 0 0.00% 0.00%
C 4001 4001 2 2 0.05% 0.05%
D 4001 4001 61 61 1.52% 1.52%

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 15 237 464698 5226.78 430 422 88.8
A 10 83 377343 4243.34 430 422 88.8
A 15 222 215745 2424.09 430 422 88.8
B 0 186 78571 927.82 432 422 84.2
B 5 255 40063 470.64 432 422 84.2
B 0 189 29874 349.67 432 422 84.2
C 0 239 221179 2254.88 417 418 97.9
C 15 214 165791 1689.14 417 418 97.9
C 3 233 25261 253.75 417 418 97.9
D 12 233 146920 1444.47 418 406 101.4
D 13 84 110829 1088.65 418 406 101.4
D 1 216 32543 316.83 418 406 101.4

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