ASTROSAT CZTI

Data Quality Report

Orbit 10261

Creation date: 2024-06-27T15:57:00.371912
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_9000001480_10261cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10261cztM0_level2_quad_clean.evt
Size (bytes)645,661,440127,457,280
Size615.8 MB 121.6 MB
Events in quadrant A4,609,078778,669
Events in quadrant B4,455,057797,312
Events in quadrant C4,190,451820,101
Events in quadrant D5,712,349864,509

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0672485
B0671475
C0672477
D0629441

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07440755775
B07689658815
C07043452414
D07958256570

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06640
B08256
C08256
D05934

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8202891.085101%
B8181750.916758%
C8632640.741427%
D9482720.759333%

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 13002 9813 0 0 0.00% 0.00%
B 13002 9726 0 0 0.00% 0.00%
C 13001 10051 0 0 0.00% 0.00%
D 13002 10237 3 3 0.02% 0.03%

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 433257 2032.15 1059 1040 212.7
A 15 239 84170 390.85 1059 1040 212.7
A 3 1 11201 47.77 1059 1040 212.7
B 11 51 113802 573.05 1047 1026 196.8
B 0 214 113341 570.7 1047 1026 196.8
B 4 239 68724 343.99 1047 1026 196.8
C 9 68 28218 111.53 1066 1073 243.4
C 13 61 8003 28.47 1066 1073 243.4
C 14 67 5569 18.47 1066 1073 243.4
D 8 195 719224 2484.54 1167 1141 289.0
D 1 52 257007 885.29 1167 1141 289.0
D 10 172 93763 320.47 1167 1141 289.0

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