ASTROSAT CZTI

Data Quality Report

Orbit 14415

Creation date: 2024-06-27T16:54:49.454098
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/AS1A04_186T01_9000002126_14415cztM0_level2.evt modeM0/AS1A04_186T01_9000002126_14415cztM0_level2_quad_clean.evt
Size (bytes)144,904,32044,009,280
Size138.2 MB 42.0 MB
Events in quadrant A986,431304,424
Events in quadrant B1,052,377302,515
Events in quadrant C1,067,363296,461
Events in quadrant D1,147,146287,042

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042171
B044611
C044221
D047211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194730.154083%
B1947150.770416%
C194710.051361%
D1947472.413970%

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 1948 1948 0 0 0.00% 0.00%
B 1948 1948 5 5 0.26% 0.26%
C 1948 1948 0 0 0.00% 0.00%
D 1948 1948 36 36 1.85% 1.85%

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 8 15 14886 283.52 250 246 51.6
A 12 189 7765 145.61 250 246 51.6
A 2 242 2775 48.98 250 246 51.6
B 15 222 30232 625.73 252 246 47.9
B 4 142 17901 368.41 252 246 47.9
B 4 173 10510 214.18 252 246 47.9
C 3 233 98880 1707.68 248 250 57.8
C 13 61 1719 25.43 248 250 57.8
C 3 202 589 5.87 248 250 57.8
D 2 120 95572 1529.24 240 235 62.3
D 10 199 90504 1447.94 240 235 62.3
D 5 51 38656 616.29 240 235 62.3

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