ASTROSAT CZTI

Data Quality Report

Orbit 09513

Creation date: 2024-06-27T15:47:06.392865
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_230T06_9000001350_09513cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09513cztM0_level2_quad_clean.evt
Size (bytes)289,667,52052,171,200
Size276.2 MB 49.8 MB
Events in quadrant A2,399,372328,106
Events in quadrant B1,790,116293,224
Events in quadrant C2,079,038346,840
Events in quadrant D2,235,204334,330

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189509260
B0154388004
C0160947145
D0169517621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014759
B014664
C014848
D014864

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B041
C041
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3867581.499871%
B3467320.922988%
C4095541.318681%
D4103170.414331%

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 7689 4826 8 8 0.10% 0.17%
B 7646 4152 1 1 0.01% 0.02%
C 7689 5093 23 23 0.30% 0.45%
D 7633 5100 5 5 0.07% 0.10%

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 8 5 414286 4172.48 475 464 99.2
A 1 162 72651 727.85 475 464 99.2
A 1 178 28008 277.72 475 464 99.2
B 0 219 38073 436.61 438 427 86.2
B 0 214 23632 269.13 438 427 86.2
B 0 187 12557 140.68 438 427 86.2
C 4 254 172915 1523.59 483 486 113.2
C 14 234 17298 148.55 483 486 113.2
C 13 61 3821 29.47 483 486 113.2
D 8 195 159395 1305.65 485 472 121.7
D 1 52 74519 608.34 485 472 121.7
D 7 71 55294 450.4 485 472 121.7

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