ASTROSAT CZTI

Data Quality Report

Orbit 12101

Creation date: 2024-06-27T16:22:25.161991
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/AS1G08_065T01_9000001796_12101cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12101cztM0_level2_quad_clean.evt
Size (bytes)528,912,00095,803,200
Size504.4 MB 91.4 MB
Events in quadrant A3,423,322631,572
Events in quadrant B4,156,939612,748
Events in quadrant C3,125,957630,062
Events in quadrant D4,891,482593,941

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142403
B0165172
C0132372
D0188192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62001422.290323%
B62004126.645161%
C6200801.290323%
D62004176.725806%

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 7486 6201 8 8 0.11% 0.13%
B 7486 6202 184 184 2.46% 2.97%
C 7486 6202 0 0 0.00% 0.00%
D 7486 6201 236 236 3.15% 3.81%

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 94711 585.47 809 795 160.4
A 14 63 51579 316.59 809 795 160.4
A 1 178 38860 237.3 809 795 160.4
B 4 239 845656 5790.75 789 770 145.9
B 11 51 89981 611.44 789 770 145.9
B 15 204 76088 516.22 789 770 145.9
C 15 208 12751 65.65 798 804 182.0
C 13 61 6064 28.9 798 804 182.0
C 12 4 2085 7.04 798 804 182.0
D 1 52 1218699 6576.53 777 756 185.2
D 8 195 248214 1336.2 777 756 185.2
D 14 34 131564 706.32 777 756 185.2

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