ASTROSAT CZTI

Data Quality Report

Orbit 03994

Creation date: 2024-06-27T14:36:07.260759
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_247T01_9000000512_03994cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03994cztM0_level2_quad_clean.evt
Size (bytes)465,756,480106,467,840
Size444.2 MB 101.5 MB
Events in quadrant A3,351,002709,361
Events in quadrant B3,061,427721,413
Events in quadrant C2,771,199702,074
Events in quadrant D4,499,610657,659

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142073
B0130952
C0126012
D0177382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62151352.172164%
B6215160.257442%
C621590.144811%
D62153906.275141%

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 7560 6216 79 79 1.04% 1.27%
B 7560 6216 0 0 0.00% 0.00%
C 7560 6216 2 2 0.03% 0.03%
D 7560 6216 348 348 4.60% 5.60%

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 50 468218 3224.63 721 708 145.0
A 0 118 63586 433.7 721 708 145.0
A 8 15 13545 88.54 721 708 145.0
B 3 0 126667 901.09 739 722 139.8
B 15 204 42099 296.04 739 722 139.8
B 4 81 18400 126.48 739 722 139.8
C 12 4 12373 72.27 705 709 161.4
C 13 61 5910 32.23 705 709 161.4
C 9 247 1835 6.98 705 709 161.4
D 2 63 977258 6030.39 682 662 161.9
D 10 246 712010 4392.51 682 662 161.9
D 8 112 86469 529.85 682 662 161.9

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