ASTROSAT CZTI

Data Quality Report

Orbit 44345

Creation date: 2024-06-27T23:02:25.904740
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_004T09_9000005992_44345cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44345cztM0_level2_quad_clean.evt
Size (bytes)158,204,16038,376,000
Size150.9 MB 36.6 MB
Events in quadrant A1,761,222261,969
Events in quadrant B1,249,424266,572
Events in quadrant C1,056,220250,923
Events in quadrant D1,617,971225,352

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069880
B050770
C046160
D062020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2173401.840773%
B2174241.103956%
C2174130.597976%
D21741255.749770%

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 2173 2173 27 27 1.24% 1.24%
B 2174 2174 14 14 0.64% 0.64%
C 2174 2174 13 13 0.60% 0.60%
D 2174 2174 120 120 5.52% 5.52%

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 10 83 567118 10543.15 254 250 53.8
A 13 248 181645 3373.76 254 250 53.8
A 7 3 17874 327.79 254 250 53.8
B 7 221 56539 1134.62 248 241 49.6
B 0 190 38223 765.48 248 241 49.6
B 0 229 30457 608.97 248 241 49.6
C 14 254 60844 1042.67 243 244 58.1
C 1 3 31384 535.79 243 244 58.1
C 3 233 15956 270.34 243 244 58.1
D 2 153 277433 4460.34 243 236 62.1
D 5 222 72743 1166.7 243 236 62.1
D 12 233 68876 1104.48 243 236 62.1

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