ASTROSAT CZTI

Data Quality Report

Orbit 15064

Creation date: 2024-06-27T17:03:15.317409
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/AS1T02_060T01_9000002216_15064cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15064cztM0_level2_quad_clean.evt
Size (bytes)442,025,28085,135,680
Size421.5 MB 81.2 MB
Events in quadrant A3,101,791546,709
Events in quadrant B3,698,206547,869
Events in quadrant C3,328,539542,189
Events in quadrant D2,843,940515,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131142
B0148761
C0137191
D0126921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6094430.705612%
B60943185.218247%
C6094290.475878%
D6094420.689202%

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 7290 6096 0 0 0.00% 0.00%
B 7290 6095 154 154 2.11% 2.53%
C 7290 6096 0 0 0.00% 0.00%
D 7290 6096 8 8 0.11% 0.13%

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 99551 657.94 749 735 150.2
A 1 178 45603 298.74 749 735 150.2
A 1 161 40197 262.75 749 735 150.2
B 3 64 789542 5643.53 738 722 139.8
B 12 111 16699 114.31 738 722 139.8
B 11 111 14623 99.45 738 722 139.8
C 3 233 482435 2860.39 729 735 168.4
C 13 61 5216 26.61 729 735 168.4
C 3 232 3121 14.17 729 735 168.4
D 13 249 99627 563.31 725 705 175.6
D 2 234 20475 112.58 725 705 175.6
D 13 104 8620 45.07 725 705 175.6

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