ASTROSAT CZTI

Data Quality Report

Orbit 04443

Creation date: 2024-06-27T14:42:30.179597
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_9000000555_04443cztM0_level2.evt modeM0/AS1SLEW_01234_9000000555_04443cztM0_level2_quad_clean.evt
Size (bytes)99,207,3604,610,880
Size94.6 MB 4.4 MB
Events in quadrant A721,3457,703
Events in quadrant B747,1547,960
Events in quadrant C705,0067,522
Events in quadrant D729,0647,343

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029871
B030621
C029651
D031191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A145110.068918%
B145120.137836%
C145110.068918%
D1451130.895934%

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 1451 1451 0 0 0.00% 0.00%
B 1451 1451 0 0 0.00% 0.00%
C 1451 1451 0 0 0.00% 0.00%
D 1451 1451 11 11 0.76% 0.76%

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 12 194 1873 42.55 187 184 39.7
A 0 226 1820 41.21 187 184 39.7
A 13 254 543 9.04 187 184 39.7
B 4 48 12890 338.88 189 185 37.5
B 12 111 3318 83.57 189 185 37.5
B 4 200 2659 65.99 189 185 37.5
C 9 247 2329 49.63 179 181 43.3
C 9 16 1623 33.32 179 181 43.3
C 13 61 1433 28.93 179 181 43.3
D 8 112 30169 692.4 175 170 43.3
D 13 239 24370 558.55 175 170 43.3
D 4 95 6179 138.69 175 170 43.3

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