ASTROSAT CZTI

Data Quality Report

Orbit 27949

Creation date: 2024-06-27T19:46:17.862710
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_016T01_9000004034_27949cztM0_level2.evt modeM0/AS1A10_016T01_9000004034_27949cztM0_level2_quad_clean.evt
Size (bytes)683,628,48086,135,040
Size652.0 MB 82.1 MB
Events in quadrant A3,100,390590,753
Events in quadrant B3,527,614602,154
Events in quadrant C3,487,363571,573
Events in quadrant D10,186,216427,467

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126150
B0140970
C0139490
D0344270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5950701.176471%
B5950871.462185%
C59491933.244243%
D5949264744.494873%

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 7150 5950 0 0 0.00% 0.00%
B 7150 5950 2 2 0.03% 0.03%
C 7149 5949 48 48 0.67% 0.81%
D 7149 5949 2543 2543 35.57% 42.75%

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 13 254 10125 57.88 802 789 161.3
A 3 137 7113 39.21 802 789 161.3
A 0 226 6856 37.61 802 789 161.3
B 10 245 156319 1044.0 789 770 149.0
B 0 230 130153 868.38 789 770 149.0
B 15 32 101453 675.76 789 770 149.0
C 3 233 371855 2080.74 766 773 178.3
C 14 238 124815 695.53 766 773 178.3
C 13 61 5204 24.85 766 773 178.3
D 7 80 5363596 34786.23 644 626 154.2
D 1 52 1679980 10892.92 644 626 154.2
D 8 195 594412 3851.52 644 626 154.2

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