ASTROSAT CZTI

Data Quality Report

Orbit 07821

Creation date: 2024-06-27T15:24:27.570745
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/AS1G06_077T02_9000001076_07821cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07821cztM0_level2_quad_clean.evt
Size (bytes)128,865,6008,406,720
Size122.9 MB 8.0 MB
Events in quadrant A858,95627,304
Events in quadrant B993,36728,634
Events in quadrant C847,15228,787
Events in quadrant D1,068,14727,291

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039151
B042330
C039100
D045210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194800.000000%
B194870.359343%
C194800.000000%
D1948180.924025%

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 1947 1947 0 0 0.00% 0.00%
B 1947 1947 7 7 0.36% 0.36%
C 1948 1948 0 0 0.00% 0.00%
D 1948 1948 14 14 0.72% 0.72%

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 14 5923 122.39 220 216 46.6
A 15 174 4395 89.62 220 216 46.6
A 12 194 2120 40.83 220 216 46.6
B 10 246 100542 2283.69 218 213 43.9
B 0 219 16929 380.49 218 213 43.9
B 0 214 14723 330.28 218 213 43.9
C 9 54 12475 242.06 212 213 50.7
C 1 16 4411 82.87 212 213 50.7
C 13 61 1693 29.22 212 213 50.7
D 2 152 137078 2476.78 214 207 55.3
D 2 136 37310 671.41 214 207 55.3
D 7 71 23125 414.72 214 207 55.3

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