ASTROSAT CZTI

Data Quality Report

Orbit 08697

Creation date: 2024-06-27T15:36:05.406761
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/AS1A03_052T01_9000001208_08697cztM0_level2.evt modeM0/AS1A03_052T01_9000001208_08697cztM0_level2_quad_clean.evt
Size (bytes)112,844,16021,559,680
Size107.6 MB 20.6 MB
Events in quadrant A802,778134,440
Events in quadrant B927,759133,377
Events in quadrant C799,252138,927
Events in quadrant D778,415130,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172
B0174
C0174
D0183

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012684
B012894
C012693
D012479

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132969983
B01445410743
C0129729670
D01394610707

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1529120.784827%
B1494473.145917%
C156270.448143%
D149860.400534%

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 7392 2288 0 0 0.00% 0.00%
B 7437 2255 22 22 0.30% 0.98%
C 7579 2319 0 0 0.00% 0.00%
D 7543 2222 1 1 0.01% 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 13 251 22636 526.24 202 198 42.6
A 0 226 1864 39.07 202 198 42.6
A 12 194 1716 35.6 202 198 42.6
B 10 16 138076 3512.46 197 193 39.3
B 0 230 10022 250.39 197 193 39.3
B 4 48 7162 177.53 197 193 39.3
C 13 61 1482 25.78 204 205 49.5
C 8 222 940 14.84 204 205 49.5
C 12 4 781 11.63 204 205 49.5
D 1 52 13896 278.35 194 188 49.2
D 13 238 7097 140.29 194 188 49.2
D 13 105 6349 125.1 194 188 49.2

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