ASTROSAT CZTI

Data Quality Report

Orbit 04424

Creation date: 2024-06-27T14:41:47.324433
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/AS1G05_230T04_9000000550_04424cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04424cztM0_level2_quad_clean.evt
Size (bytes)626,400,00098,654,400
Size597.4 MB 94.1 MB
Events in quadrant A3,778,084638,288
Events in quadrant B3,473,522635,800
Events in quadrant C3,140,515638,685
Events in quadrant D8,092,455574,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162733
B0153562
C0145592
D0290802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71851492.073765%
B7185851.183020%
C7185250.347947%
D718588412.303410%

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 9035 7187 62 62 0.69% 0.86%
B 9035 7187 32 32 0.35% 0.45%
C 9035 7187 1 1 0.01% 0.01%
D 9035 7187 855 855 9.46% 11.90%

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 0 13 553166 3367.67 801 781 164.0
A 8 15 64128 386.2 801 781 164.0
A 0 118 59082 355.44 801 781 164.0
B 14 167 259591 1666.49 815 796 155.3
B 15 204 31006 194.54 815 796 155.3
B 7 252 13427 81.34 815 796 155.3
C 14 48 42591 228.51 789 791 182.9
C 9 247 9278 46.39 789 791 182.9
C 13 61 6580 31.64 789 791 182.9
D 13 114 4463817 24561.6 753 728 181.7
D 2 136 394390 2166.43 753 728 181.7
D 13 53 93899 512.75 753 728 181.7

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