ASTROSAT CZTI

Data Quality Report

Orbit 27852

Creation date: 2024-06-27T19:45:12.027574
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_002T04_9000004022_27852cztM0_level2.evt modeM0/AS1A10_002T04_9000004022_27852cztM0_level2_quad_clean.evt
Size (bytes)505,612,80095,970,240
Size482.2 MB 91.5 MB
Events in quadrant A3,252,599639,530
Events in quadrant B3,265,800624,751
Events in quadrant C3,493,845601,214
Events in quadrant D4,856,422584,857

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137300
B0137630
C0145250
D0188420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542440.672577%
B6542500.764292%
C65431392.124408%
D65423365.136044%

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 7477 6543 2 2 0.03% 0.03%
B 7477 6542 0 0 0.00% 0.00%
C 7478 6543 22 22 0.29% 0.34%
D 7477 6543 301 301 4.03% 4.60%

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 6 16 45008 265.88 828 810 166.2
A 0 13 12665 71.32 828 810 166.2
A 13 254 11791 66.06 828 810 166.2
B 0 190 29582 188.13 811 789 153.0
B 12 111 18374 114.9 811 789 153.0
B 10 245 16781 104.49 811 789 153.0
C 3 233 279623 1502.9 791 795 185.5
C 14 238 126949 679.98 791 795 185.5
C 13 61 5304 24.3 791 795 185.5
D 1 52 1133378 6022.48 790 773 188.1
D 2 250 401823 2132.53 790 773 188.1
D 13 104 270045 1431.82 790 773 188.1

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