ASTROSAT CZTI

Data Quality Report

Orbit 11589

Creation date: 2024-06-27T16:15:34.733113
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/AS1G08_031T01_9000001702_11589cztM0_level2.evt modeM0/AS1G08_031T01_9000001702_11589cztM0_level2_quad_clean.evt
Size (bytes)457,640,64072,529,920
Size436.4 MB 69.2 MB
Events in quadrant A3,359,341437,692
Events in quadrant B3,570,351441,021
Events in quadrant C3,041,585440,241
Events in quadrant D3,442,306419,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141043
B0147712
C0134402
D0145802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6561681.036427%
B65611582.408169%
C6561380.579180%
D6561891.356501%

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 7587 6563 2 2 0.03% 0.03%
B 7587 6563 49 49 0.65% 0.75%
C 7587 6563 0 0 0.00% 0.00%
D 7587 6563 33 33 0.43% 0.50%

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 1 162 109189 675.41 788 771 160.5
A 1 178 62601 385.18 788 771 160.5
A 1 161 53200 326.62 788 771 160.5
B 4 239 272394 1782.25 790 770 152.4
B 3 64 61343 397.45 790 770 152.4
B 4 81 58199 376.82 790 770 152.4
C 9 54 6252 30.22 778 782 181.0
C 13 61 5789 27.66 778 782 181.0
C 14 234 2435 9.13 778 782 181.0
D 1 52 381518 2082.67 764 744 182.8
D 2 33 56136 302.97 764 744 182.8
D 5 222 47471 255.58 764 744 182.8

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