ASTROSAT CZTI

Data Quality Report

Orbit 15134

Creation date: 2024-06-27T17:04:23.161578
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/AS1C03_015T03_9000002230_15134cztM0_level2.evt modeM0/AS1C03_015T03_9000002230_15134cztM0_level2_quad_clean.evt
Size (bytes)163,874,88046,828,800
Size156.3 MB 44.7 MB
Events in quadrant A1,192,928307,949
Events in quadrant B1,242,156311,348
Events in quadrant C1,206,428311,144
Events in quadrant D1,143,812302,624

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053230
B053720
C052430
D053570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2574301.165501%
B2574311.204351%
C2574291.126651%
D2574291.126651%

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 2574 2574 0 0 0.00% 0.00%
B 2575 2575 8 8 0.31% 0.31%
C 2575 2575 1 1 0.04% 0.04%
D 2575 2575 9 9 0.35% 0.35%

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 12 189 71247 1154.13 290 283 61.5
A 0 226 2596 37.62 290 283 61.5
A 12 194 2133 30.09 290 283 61.5
B 3 64 59416 1011.96 294 286 58.4
B 3 209 10191 169.51 294 286 58.4
B 0 229 8651 143.16 294 286 58.4
C 3 233 90201 1326.55 284 284 67.8
C 0 207 5938 83.41 284 284 67.8
C 13 61 1954 24.63 284 284 67.8
D 7 38 45303 644.01 280 270 69.9
D 13 172 12190 170.47 280 270 69.9
D 2 234 11336 158.25 280 270 69.9

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