ASTROSAT CZTI

Data Quality Report

Orbit 19454

Creation date: 2024-06-27T18:03:05.426114
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/AS1A05_229T02_9000002890_19454cztM0_level2.evt modeM0/AS1A05_229T02_9000002890_19454cztM0_level2_quad_clean.evt
Size (bytes)178,188,48018,953,280
Size169.9 MB 18.1 MB
Events in quadrant A1,401,958103,609
Events in quadrant B1,318,332105,615
Events in quadrant C1,277,693102,027
Events in quadrant D1,245,602101,643

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055921
B053291
C050791
D049701

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22181396.266907%
B22181255.635708%
C22181185.320108%
D2218904.057710%

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 3498 2218 16 16 0.46% 0.72%
B 3498 2218 0 0 0.00% 0.00%
C 3498 2218 1 1 0.03% 0.05%
D 3498 2218 1 1 0.03% 0.05%

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 4 2 120112 1760.39 332 325 68.0
A 13 254 2934 38.34 332 325 68.0
A 0 226 2901 37.86 332 325 68.0
B 3 64 8306 126.36 325 317 63.2
B 4 171 8014 121.74 325 317 63.2
B 0 190 7697 116.73 325 317 63.2
C 14 238 48665 665.79 312 313 72.6
C 9 221 5650 73.49 312 313 72.6
C 0 207 3401 42.52 312 313 72.6
D 1 52 20370 256.93 323 313 78.1
D 2 234 9340 115.64 323 313 78.1
D 14 226 3201 37.0 323 313 78.1

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