ASTROSAT CZTI

Data Quality Report

Orbit 28206

Creation date: 2024-06-27T19:49:09.877761
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/AS1A10_045T09_9000004072_28206cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28206cztM0_level2_quad_clean.evt
Size (bytes)514,843,20068,397,120
Size491.0 MB 65.2 MB
Events in quadrant A3,352,054405,518
Events in quadrant B3,351,394410,198
Events in quadrant C3,364,009394,605
Events in quadrant D5,066,980390,353

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143240
B0142710
C0142350
D0197740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6743640.949132%
B6742731.082765%
C67421191.765055%
D67422824.182735%

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 7653 6743 2 2 0.03% 0.03%
B 7652 6742 2 2 0.03% 0.03%
C 7652 6742 1 1 0.01% 0.01%
D 7652 6742 148 148 1.93% 2.20%

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 12 16 79325 459.95 841 823 170.7
A 12 194 18638 104.38 841 823 170.7
A 13 254 10014 53.85 841 823 170.7
B 0 183 36210 221.21 831 810 160.0
B 12 111 20233 121.37 831 810 160.0
B 0 230 19146 114.58 831 810 160.0
C 14 238 131333 686.07 810 813 190.2
C 2 16 25387 129.17 810 813 190.2
C 15 208 24765 125.9 810 813 190.2
D 1 52 1579412 8162.94 811 789 193.4
D 2 250 125187 643.25 811 789 193.4
D 8 195 105980 543.93 811 789 193.4

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