ASTROSAT CZTI

Data Quality Report

Orbit 04365

Creation date: 2024-06-27T14:41:09.968608
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/AS1SLEW_01234_9000000543_04365cztM0_level2.evt modeM0/AS1SLEW_01234_9000000543_04365cztM0_level2_quad_clean.evt
Size (bytes)56,701,4402,767,680
Size54.1 MB 2.6 MB
Events in quadrant A435,8324,959
Events in quadrant B377,6504,932
Events in quadrant C456,1034,770
Events in quadrant D389,7454,923

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018161
B016721
C018911
D017201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A802151.870324%
B80240.498753%
C802151.870324%
D80260.748130%

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 817 803 7 7 0.86% 0.87%
B 817 803 0 0 0.00% 0.00%
C 817 802 3 3 0.37% 0.37%
D 817 803 2 2 0.24% 0.25%

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 13 251 47352 2199.37 95 93 21.5
A 14 223 10868 501.45 95 93 21.5
A 15 234 6705 307.71 95 93 21.5
B 0 183 2150 95.81 97 94 21.5
B 12 111 1647 72.37 97 94 21.5
B 8 3 1338 57.97 97 94 21.5
C 9 247 81448 3390.88 94 95 24.0
C 12 4 1718 67.65 94 95 24.0
C 8 128 1064 40.39 94 95 24.0
D 13 239 16736 669.36 94 91 24.9
D 7 223 5822 230.46 94 91 24.9
D 2 63 5497 217.4 94 91 24.9

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