ASTROSAT CZTI

Data Quality Report

Orbit 03575

Creation date: 2024-06-27T14:31:08.886135
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_045T01_9000000468_03575cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03575cztM0_level2_quad_clean.evt
Size (bytes)462,522,24081,682,560
Size441.1 MB 77.9 MB
Events in quadrant A3,064,719522,479
Events in quadrant B4,217,471518,417
Events in quadrant C3,134,660515,632
Events in quadrant D3,184,039498,589

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130532
B0167191
C0133251
D0135071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59891061.769912%
B59891903.172483%
C5989500.834864%
D5989901.502755%

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 7289 5990 29 29 0.40% 0.48%
B 7289 5990 97 97 1.33% 1.62%
C 7289 5990 0 0 0.00% 0.00%
D 7289 5990 51 51 0.70% 0.85%

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 122356 834.01 721 707 145.9
A 0 118 101537 691.28 721 707 145.9
A 7 16 28321 189.32 721 707 145.9
B 15 204 913040 6722.4 720 704 135.7
B 4 81 318639 2342.65 720 704 135.7
B 0 182 56144 408.5 720 704 135.7
C 2 53 367440 2246.28 704 709 163.3
C 1 16 8567 48.13 704 709 163.3
C 13 61 6132 33.22 704 709 163.3
D 1 193 166090 975.21 704 683 169.6
D 13 70 90713 530.8 704 683 169.6
D 13 223 57111 332.69 704 683 169.6

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