ASTROSAT CZTI

Data Quality Report

Orbit 45054

Creation date: 2024-06-27T23:09:26.050435
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/AS1A13_020T01_9000006040_45054cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45054cztM0_level2_quad_clean.evt
Size (bytes)530,835,840100,056,960
Size506.2 MB 95.4 MB
Events in quadrant A5,122,280677,947
Events in quadrant B3,656,980705,429
Events in quadrant C3,272,975675,654
Events in quadrant D7,144,038561,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190181
B0145551
C0134701
D0254221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58522774.733424%
B58522474.220779%
C58522454.186603%
D585285714.644566%

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 7022 5853 76 76 1.08% 1.30%
B 7022 5853 101 101 1.44% 1.73%
C 7022 5853 146 146 2.08% 2.49%
D 7022 5853 613 613 8.73% 10.47%

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 10 83 2092406 14388.28 705 689 145.4
A 13 248 173080 1185.83 705 689 145.4
A 7 3 63832 434.34 705 689 145.4
B 0 189 199329 1457.08 699 678 136.3
B 5 32 188480 1377.5 699 678 136.3
B 4 171 139868 1020.94 699 678 136.3
C 14 254 535372 3293.29 690 693 162.4
C 12 250 16952 100.15 690 693 162.4
C 1 3 13988 81.89 690 693 162.4
D 11 241 2020495 12044.52 662 643 167.7
D 13 249 1131040 6740.64 662 643 167.7
D 13 174 429442 2556.96 662 643 167.7

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